DR. ZACHARY DANIEL PREEFER DO
NPI 1093202566
Anesthesiology in San Jose, CA

NPI Status: Active since April 19, 2018

Contact Information

2105 FOREST AVE
SAN JOSE, CA
ZIP 95128
Phone: (408) 947-2500

Get Directions Reviews

  • Individual
  • Male
  • Years of Experience 8
  • Anesthesiology
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About ZACHARY PREEFER

This page provides the complete NPI Profile along with additional information for Zachary Preefer, an anesthesiologist established in San Jose, California with a medical specialization in Anesthesiology and more than 8 years of experience. He graduated from Des Moines University Of Osteopathic Medicine And Health Sciences in 2018. The healthcare provider is registered in the NPI registry with number 1093202566 assigned on April 2018. The practitioner's primary taxonomy code is 207L00000X with license number 21899 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1093202566
Provider Name
DR. ZACHARY DANIEL PREEFER DO
Gender
Male
Entity Type
Individual
Location Address
2105 FOREST AVE SAN JOSE, CA 95128
Location Phone
(408) 947-2500
Mailing Address
730 ALTOS OAKS DR LOS ALTOS, CA 94024
Medical School Name
DES MOINES UNIVERSITY OF OSTEOPATHIC MEDICINE AND HEALTH SCIENCES
Graduation Year
2018
Is Sole Proprietor?
No
Enumeration Date
04-19-2018
Last Update Date
03-04-2024
Code Navigator

An anesthesiologist like Zachary Preefer 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

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.
21899
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

OP61303160 (WA)
2207LP2900XAllopathic & Osteopathic Physicians

Anesthesiology
Pain Medicine

OP61303160 (WA)

Medicare Participation & PECOS Enrollment Status

Zachary Preefer 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.

Zachary Preefer 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: 4981931383

    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: I20231128002214

    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

Reviews for DR. ZACHARY DANIEL PREEFER DO

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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.
1093202566
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
20183404512
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 0 + 1 + 8 + 3 + 4 + 0 + 4 + 5 + 1 + 2 + 24 = 54
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 54 = 66

The NPI number 1093202566 is valid because the calculated check digit 6 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
1275528721 LARRY MATSUMOTO M.D.
Individual
Pathology (Anatomic Pathology & Clinical Pathology)2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2501
1245213727DR. JOAN MISCH GATES M.D.
Individual
Emergency Medicine2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2616
1780630111 RAYMOND LAWRENCE SULLIVAN JR. MD
Individual
Anesthesiology2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2500
1598712069 MEENESH A BHIMANI MD
Individual
Emergency Medicine2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2500
1528007390 KLAUS P FECHNER MD
Individual
Radiology (Diagnostic Radiology)2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2992
1316989494 GRETA JONES LIEBELT NP
Individual
Nurse Practitioner2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2500
1972545952 MARCO R RANDAZZO MD
Individual
Emergency Medicine2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2500
1790727873 GREGORY A GROETSEMA MD
Individual
Emergency Medicine2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2500
1093757056 BRIAN SAAVEDRA MD
Individual
Emergency Medicine2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2500
1982646105 KRISTA M CROWLEY NP
Individual
Nurse Practitioner2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2500
1164464319 HOWARD Z DAVIS MD
Individual
Emergency Medicine2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2500
1326076241 STEVE E GERMANY DO
Individual
Emergency Medicine2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2500
1871521799 SAMI A JADALLAH MD
Individual
Emergency Medicine2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2500
1689602500 MARK S PENNER DO
Individual
Emergency Medicine2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2500
1841390580 RICHARD TURNER MD
Individual
Radiology (Diagnostic Radiology)2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2992
1285735001 CHARLES GRIFFIN MD
Individual
Radiology (Diagnostic Radiology)2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2992
1568558948 PHILIP PATTARELLI MD
Individual
Radiology (Diagnostic Radiology)2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2992
1699831420 CONSTANCE R BOWIE MD
Individual
Radiology (Radiation Oncology)2105 FOREST AVE OCONNOR HOSPITAL
SAN JOSE, CA 95128
(408) 947-2995
1962531269MRS. TWINKLE JOSE MOOTHEDAN RN
Individual
Registered Nurse (Oncology)2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2516
1417070723 GAIL EMILY BELLMAN M.D.
Individual
Radiology (Radiation Oncology)2105 FOREST AVE
SAN JOSE, CA 95128
(408) 947-2500

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1093202566, enumerated in the NPI registry as an "individual" on April 19, 2018

The provider is located at 2105 Forest Ave San Jose, Ca 95128 and the phone number is (408) 947-2500

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

The provider has more than 8 years of experience. He graduated from Des Moines University Of Osteopathic Medicine And Health Sciences in 2018.

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.

This NPI record was last updated on April 19, 2018. 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].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.