DR. ROBIN MARCELLUS DENNINGS M.D.
NPI 1649265349
Anesthesiology in San Ramon, CA

NPI Status: Active since September 19, 2005

Contact Information

200 PORTER DR
SUITE 100
SAN RAMON, CA
ZIP 94583
Phone: (925) 838-6880

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  • Individual
  • Male
  • Years of Experience 34
  • Anesthesiology
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About ROBIN DENNINGS

This page provides the complete NPI Profile along with additional information for Robin Dennings, an anesthesiologist established in San Ramon, California with a medical specialization in Anesthesiology and more than 34 years of experience. He graduated from University Of California, Geffen School Of Medicine in 1992. The healthcare provider is registered in the NPI registry with number 1649265349 assigned on September 2005. The practitioner's primary taxonomy code is 207L00000X with license number G79204 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1649265349
Provider Name
DR. ROBIN MARCELLUS DENNINGS M.D.
Gender
Male
Entity Type
Individual
Location Address
200 PORTER DR SUITE 100 SAN RAMON, CA 94583
Location Phone
(925) 838-6880
Mailing Address
PO BOX 25033 SANTA ANA, CA 92799
Mailing Phone
(714) 347-1010
Mailing Fax
Medical School Name
UNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduation Year
1992
Is Sole Proprietor?
No
Enumeration Date
09-19-2005
Last Update Date
06-30-2024
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An anesthesiologist like Robin Dennings 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.

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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.
G79204
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)
1207LP2900XAllopathic & Osteopathic Physicians

Anesthesiology
Pain Medicine

G79204 (CA)

Medicare Participation & PECOS Enrollment Status

Robin Dennings 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.

Robin Dennings 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: 7517904402

    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: I20050412001135

    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 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 11 times for 11 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 42 times for 42 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 17 times for 17 patients

Reviews for DR. ROBIN MARCELLUS DENNINGS M.D.

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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.
1649265349
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2689461038
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 6 + 8 + 9 + 4 + 6 + 1 + 0 + 3 + 8 + 24 = 71
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
80 - 71 = 99

The NPI number 1649265349 is valid because the calculated check digit 9 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
1508856741 KATE ELISE RATTO PNP
Individual
Nurse Practitioner (Pediatrics)200 PORTER DR SUITE 300
SAN RAMON, CA 94583
(925) 838-6500
1750372389 CYNTHIA JO HANN MD
Individual
Pediatrics200 PORTER DR STE 300
SAN RAMON, CA 94583
(925) 838-6500
1831180132 ALLEN DOUGLAS OBRINSKY MD
Individual
Pediatrics200 PORTER DR SUITE 300
SAN RAMON, CA 94583
(925) 838-6500
1134109119DR. KEVIN EUGENE FRIDIE M.D.
Individual
Anesthesiology200 PORTER DR SUITE 100
SAN RAMON, CA 94583
(925) 838-6880
1831166495MR. JOHN NISBET PT
Individual
Physical Therapist (Orthopedic)200 PORTER DR SUITE 101
SAN RAMON, CA 94583
(925) 838-1440
1720055072 JON S. ROCCA PT
Individual
Physical Therapist200 PORTER DR SUITE 101
SAN RAMON, CA 94583
(925) 838-1440
1588632673 MICHAEL A RUIZ MD
Individual
Pediatrics200 PORTER DR SUITE 300
SAN RAMON, CA 94583
(925) 838-6500
1710929179 GREGORY STEVEN GARBIN MD
Individual
Anesthesiology200 PORTER DR SUITE 100
SAN RAMON, CA 94583
(925) 838-6880
1346339488MRS. MEGAN KELLY WINSLOW R.D.
Individual
Dietitian, Registered200 PORTER DR SUITE 300
SAN RAMON, CA 94583
(925) 314-2547
1588999734DR. CLAIR STEVEN WEENIG M.D.
Individual
Anesthesiology200 PORTER DR SUITE 100
SAN RAMON, CA 94583
(925) 838-6880
1477812998 ARTHUR HUNG-CHUN CHU PT
Individual
Physical Therapist200 PORTER DR #101
SAN RAMON, CA 94583
(925) 838-1550
1306882956SAN RAMON SURGERY CENTER, LP
Organization
Clinic/Center (Ambulatory Surgical)200 PORTER DR STE. 100
SAN RAMON, CA 94583
(925) 838-6880
1316117682 LAURA HEATHER ANAYA PA
Individual
Physician Assistant200 PORTER DR SUITE 200
SAN RAMON, CA 94583
(925) 838-2108
1356385124 LYNN ELLEN HAYDEN CNM
Individual
Advanced Practice Midwife200 PORTER DR SUITE 200
SAN RAMON, CA 94583
(925) 838-2108
1598755787 PAUL KELSEY WHEELER MD
Individual
Internal Medicine200 PORTER DR STE 300
SAN RAMON, CA 94583
(925) 838-6511
1619968443 SUE JOHNSON KNIGHT MD
Individual
Internal Medicine200 PORTER DR STE 300
SAN RAMON, CA 94583
(925) 838-6511
1598732984WEBSTER ORTHOPAEDIC MEDICAL GROUP, A PROFESSIONAL CORPORATION
Organization
Orthopaedic Surgery200 PORTER DR SUITE 101
SAN RAMON, CA 94583
(925) 483-1440
1871663021WEBSTER ORTHOPAEDIC MEDICAL GROUP, A PROFESSIONAL CORP.
Organization
Clinic/Center (Magnetic Resonance Imaging (MRI))200 PORTER DR SUITE 101
SAN RAMON, CA 94583
(925) 838-1440
1124060470 JULIE ANN CHOATE PT
Individual
Physical Therapist200 PORTER DR SUITE 101
SAN RAMON, CA 94583
(925) 838-1550
1922143312 ALLYSON R LACHMAN P.T.
Individual
Occupational Therapist (Hand)200 PORTER DR SUITE 101
SAN RAMON, CA 94583
(925) 362-2147

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1649265349, enumerated in the NPI registry as an "individual" on September 19, 2005

The provider is located at 200 Porter Dr Suite 100 San Ramon, Ca 94583 and the phone number is (925) 838-6880

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

The provider has more than 34 years of experience. He graduated from University Of California, Geffen School Of Medicine in 1992.

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

This NPI record was last updated on September 19, 2005. 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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