DR. SPENCER WILLIAM PRESTON DROTMAN M.D.
NPI 1578906665
Anesthesiology in Greenbrae, CA


Quality Rating: 0 out of 100 score

NPI Status: Active since April 09, 2013

Contact Information

250 BON AIR RD
GREENBRAE, CA
ZIP 94904
Phone: (415) 925-7100

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  • Individual
  • Male
  • Years of Experience 13
  • Anesthesiology
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About SPENCER DROTMAN

This page provides the complete NPI Profile along with additional information for Spencer Drotman, an anesthesiologist established in Greenbrae, California with a medical specialization in Anesthesiology and more than 13 years of experience. He graduated from Georgetown University School Of Medicine in 2013. The healthcare provider is registered in the NPI registry with number 1578906665 assigned on April 2013. The practitioner's primary taxonomy code is 207L00000X with license number A156562 (CA). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1578906665
Provider Name
DR. SPENCER WILLIAM PRESTON DROTMAN M.D.
Gender
Male
Entity Type
Individual
Location Address
250 BON AIR RD GREENBRAE, CA 94904
Location Phone
(415) 925-7100
Mailing Address
PO BOX 527 LARKSPUR, CA 94977
Mailing Phone
(888) 991-1101
Mailing Fax
Medical School Name
GEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduation Year
2013
Is Sole Proprietor?
No
Enumeration Date
04-09-2013
Last Update Date
04-08-2020
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An anesthesiologist like Spencer Drotman manages the care of surgical patients and pain relief through drug administration that reduces or eliminates pain during an operation, medical procedure or during labor and delivery of babies. During surgical procedures anesthesiologists are responsible for adjusting the amount of anesthetic, monitoring the patient's heart rate, body temperature, blood pressure and breathing.

Location Map

Secondary Locations

  • 3401 N Broad St
    Philadelphia, PA 19140
    (215) 707-3326

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Anesthesiology

Taxonomy Code
207L00000X
Type
Allopathic & Osteopathic Physicians
License No.
A156562
License State
CA
Taxonomy Description
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207L00000XAllopathic & Osteopathic Physicians

Anesthesiology

MD463943 (PA)

Medicare Participation & PECOS Enrollment Status

Spencer Drotman is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Spencer Drotman is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 5698020881

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20200416002944

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Anesthesia for lens surgery

Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.

This service was performed 17 times for 17 patients

Anesthesia for open or endoscopic total shoulder joint replacement

Anesthesia for total shoulder joint replacement, either open or endoscopic, involves using medications to block pain during surgery. It can be general (you're asleep) or regional (only the area being operated on is numbed). This ensures comfort and stillness, facilitating a successful procedure.

This service was performed 12 times for 12 patients

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

This service was performed 17 times for 17 patients

Anesthesia for other procedure on large bowel using an endoscope

Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.

This service was performed 11 times for 11 patients

Anesthesia for other procedure on lower abdomen

Anesthesia for a lower abdomen procedure involves medication to eliminate pain during surgery. You might be awake but relaxed and pain-free, or you may be completely unconscious. It's administered to ensure comfort and safety throughout the operation.

This service was performed 11 times for 11 patients

Anesthesia for procedure for total knee joint replacement

Anesthesia for a total knee joint replacement numbs your body to eliminate pain during surgery. This could be general anesthesia where you're unconscious, or regional anesthesia where only the leg is numb. It's administered by a specialist, ensuring safety and comfort.

This service was performed 15 times for 15 patients

Anesthesia for procedure on heart and large blood vessels

Anesthesia for heart and large blood vessel procedures involves using medications to block sensation, ensuring you don't feel pain during surgery. It can be general (you're asleep) or regional (part of your body is numbed). It helps ensure comfort and safety throughout the operation.

This service was performed 16 times for 15 patients

Anesthesia for procedure on small and large bowel using an endoscope

Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.

This service was performed 11 times for 11 patients

Anesthesia for x-ray on artery of brain, heart, or chest

Anesthesia is given before an x-ray of the brain, heart, or chest artery to ensure comfort and stillness. It helps to eliminate discomfort or pain during the procedure. It's administered by a trained professional, ensuring a safe and smooth procedure.

This service was performed 18 times for 18 patients

Anesthesia for x-ray or radiation therapy

Anesthesia for x-ray or radiation therapy involves administering medication to help you relax or sleep during the procedure. It's used to ensure comfort, minimize movement, and reduce anxiety. The type of anesthesia used depends on the procedure and patient's health.

This service was performed 21 times for 21 patients

Injection of anesthetic agent and/or steroid into arm nerve bundle

This procedure involves injecting a numbing agent or steroid into your arm's nerve bundle. It's done to manage pain or inflammation. The injection helps block nerve signals that cause discomfort, providing relief. It's a safe, common procedure.

This service was performed 19 times for 18 patients

Injection of anesthetic agent and/or steroid into thigh nerve

This procedure involves injecting a numbing agent and/or steroid into a nerve in your thigh. It's done to alleviate pain or inflammation. A needle will be carefully positioned near the nerve, and the medicine will be administered.

This service was performed 15 times for 15 patients

Insertion of artery tube for blood sampling or infusion through skin

This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.

This service was performed 57 times for 56 patients

Insertion of probe in esophagus for heart ultrasound

This procedure involves placing a small probe in your esophagus. The probe, connected to an ultrasound machine, helps capture detailed images of your heart. This non-surgical, minimally invasive procedure provides valuable information about your heart's structure and function.

This service was performed 29 times for 28 patients

Ultrasonic guidance for blood vessel access

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

This service was performed 48 times for 47 patients

Ultrasonic guidance for needle placement

Ultrasonic guidance for needle placement is a technique where sound waves create images that help accurately position the needle during procedures. This method ensures precision, minimizes discomfort, and increases safety.

This service was performed 37 times for 36 patients

Ultrasound of heart blood flow, valves and chambers

An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.

This service was performed 11 times for 11 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

This service was performed 11 times for 11 patients

Ultrasound of heart with probe in esophagus, with report

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

This service was performed 11 times for 11 patients

Overall MIPS Quality Performance

The provider participated in CMS Quality Payment Program under the Merit-based Incentive Payment System (MIPS) and has an overall final score of 0, based on four performance areas: quality, improvement activities, promoting interoperability, and cost. The purpose of this information is to help people with Medicare make informed decisions and incentivize doctors and clinicians to maximize performance.

The Merit-based Incentive Payment System (MIPS) is a way providers could use to participate in CMS Quality Payment Program (QPP). The MIPS program affects clinician reimbursement for Part B covered professional services and also rewards them for improving the quality of patient care and outcomes.

  • Final Score: 0 out of 100

    The MIPS program evaluates providers across multiple categories with a specific weight for each category resulting a in a MIPS final score that ranges from 0 to 100 points. The MIPS Final Score determines whether providers receive a negative, neutral or positive MIPS payment adjustment.

  • Quality Score: 0

    The Quality category assesses providers performance on clinical practices and patient outcomes under the traditional MIPS program. The quality measures help identify the quality of healthcare processes, outcomes, and patient experiences. The Quality measure category compromises 40% providers final MPIS scores.

    There are six collection types for MIPS quality measures: Electronic Clinical Quality Measures (eCQMs), MIPS Clinical Quality Measures (CQMs), Qualified Clinical Data Registry (QCDR) Measures, Medicare Part B claims measures, CMS Web Interface measures and The Consumer Assessment of Healthcare Providers and Systems (CAHPS) for MIPS Survey.

  • Promoting Interoperability Score: N/A

    The Interoperability category measures the providers ability to use technology to exchange and make use of healthcare information in a way that is less burdensome and improves outcomes. The Interoperability measure category compromises 25% providers final MPIS scores.

    The MIPS Interoperability measure focuses on the use of certified electronic health record technology (CEHRT) to improve patient access health information, the exchange of information between clinicians and pharmacies and the systematic collection, analysis, and interpretation of healthcare data.

  • Improvement Activities Score: 0

    The Improvement Activities performance category evaluates the providers participation in clinical activities that support the improvement of clinical practice, care delivery, and outcomes. Providers have the option to choose 2 to 4 activities from an inventory of over 100 improvement activities. Providers typically choose the activities that best fit their needs. The improvement activities measure category compromises 15% providers final MPIS scores.

    The Improvement measures aim to better patient engagement, patient safety and other areas of patient care. The Improvement Activities category compromises 15% of providers final MPIS scores.

  • Cost Score: N/A

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

  • Cost Score: N/A

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1578906665
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2514818012612
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 5 + 1 + 4 + 8 + 1 + 8 + 0 + 1 + 2 + 6 + 1 + 2 + 24 = 65
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 65 = 55

The NPI number 1578906665 is valid because the calculated check digit 5 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1780677963MS. JANET PATRICIA MILLER-MELKA RNFA
Individual
Nurse Practitioner250 BON AIR RD
GREENBRAE, CA 94904
(415) 925-7525
1144267097 DENNIS STEVEN ORWIG M.D.
Individual
Radiology (Diagnostic Radiology)250 BON AIR RD
GREENBRAE, CA 94904
(415) 925-7301
1245271634 BRIAN JOHN SALMEN M.D.
Individual
Radiology (Diagnostic Radiology)250 BON AIR RD
GREENBRAE, CA 94904
(415) 925-7301
1386686525 CHAD JAMES GOODMAN M.D.
Individual
Radiology (Diagnostic Radiology)250 BON AIR RD
GREENBRAE, CA 94904
(415) 925-7301
1427091016 WILLIAM JAMES DEMARTINI M.D.
Individual
Radiology (Diagnostic Radiology)250 BON AIR RD
GREENBRAE, CA 94904
(415) 925-7301
1720016637 T LEROY BENSON M.D.
Individual
Anesthesiology250 BON AIR RD
GREENBRAE, CA 94904
(415) 454-2218
1235163569DR. MICHAEL L. NEJAD M.D.
Individual
Internal Medicine250 BON AIR RD 3RD FLOOR
GREENBRAE, CA 94904
(415) 925-7545
1063430106DR. KERRY LYNN DAVIDSON M.D.
Individual
Internal Medicine250 BON AIR RD 3RD FLOOR
GREENBRAE, CA 94904
(415) 925-7545
1164440848 TAMI LEE GASH-KIM M.D
Individual
Emergency Medicine250 BON AIR RD
GREENBRAE, CA 94904
(415) 925-7000
1033137831 ARTHUR C COHN M.D.
Individual
Emergency Medicine250 BON AIR RD
GREENBRAE, CA 94904
(415) 925-7000
1124047451DR. JANEEN SMITH M.D.
Individual
Internal Medicine250 BON AIR RD 3RD FLOOR
GREENBRAE, CA 94904
(415) 925-7545
1881612455 CARL R SPITZER M.D.
Individual
Emergency Medicine250 BON AIR RD
GREENBRAE, CA 94904
(415) 925-7000
1992725451DR. SHANNON MONG PSY.D.
Individual
Psychologist (Clinical)250 BON AIR RD
GREENBRAE, CA 94904
(415) 499-3240
1912929290 ROBERT M RINER M.D.
Individual
Emergency Medicine250 BON AIR RD
GREENBRAE, CA 94904
(415) 925-7000
1548282825 ALAN J SPAIN M.D.
Individual
Emergency Medicine250 BON AIR RD
GREENBRAE, CA 94904
(415) 925-7000
1063434348 JEFFREY D WEITZMAN
Individual
Emergency Medicine250 BON AIR RD
GREENBRAE, CA 94904
(415) 925-7000
1598787871 JOHN J ZECHERLE M.D.
Individual
Emergency Medicine250 BON AIR RD
GREENBRAE, CA 94904
(415) 925-7000
1821010257 JEFFREY W DIETZ M.D.
Individual
Emergency Medicine250 BON AIR RD
GREENBRAE, CA 94904
(415) 925-7000
1861414203 DAVID S DUFFY M.D.
Individual
Emergency Medicine250 BON AIR RD
GREENBRAE, CA 94904
(415) 925-7000
1487677928DR. CAROL GASTON KERR PH.D.
Individual
Psychologist (Clinical)250 BON AIR RD MARIN CMHS
GREENBRAE, CA 94904
(415) 499-3255

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1578906665, enumerated in the NPI registry as an "individual" on April 09, 2013

The provider is located at 250 Bon Air Rd Greenbrae, Ca 94904 and the phone number is (415) 925-7100

The provider's speciality is Anesthesiology with taxonomy code 207L00000X

The provider has more than 13 years of experience. He graduated from Georgetown University School Of Medicine in 2013.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

The most common procedures or services performed by this practitioner are: Anesthesia for lens surgery, Anesthesia for open or endoscopic total shoulder joint replacement, Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope, Anesthesia for other procedure on large bowel using an endoscope, Anesthesia for other procedure on lower abdomen, Anesthesia for procedure for total knee joint replacement, Anesthesia for procedure on heart and large blood vessels, Anesthesia for procedure on small and large bowel using an endoscope, Anesthesia for x-ray on artery of brain, heart, or chest, Anesthesia for x-ray or radiation therapy, Injection of anesthetic agent and/or steroid into arm nerve bundle, Injection of anesthetic agent and/or steroid into thigh nerve, Insertion of artery tube for blood sampling or infusion through skin, Insertion of probe in esophagus for heart ultrasound, Ultrasonic guidance for blood vessel access, Ultrasonic guidance for needle placement, Ultrasound of heart blood flow, valves and chambers, Ultrasound of heart with color-depicted blood flow, rate and valve function and Ultrasound of heart with probe in esophagus, with report.

This NPI record was last updated on April 09, 2013. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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