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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. GREGORY H. WOLF M.D.
NPI 1881653467
Family Medicine in Orange, CA

Active since March 21, 2006PECOS EnrolledAccepts Medicare Assignment
2617 E CHAPMAN AVE, #204, ORANGE, CA 92869(714) 633-4040(714) 633-1432 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Dr. Gregory H. Wolf M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY H. WOLF M.D. (NPI 1881653467) is an individual family medicine provider in Orange, California, licensed in California (G050845) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (1982).

NPPES Registry Identity

NPI1881653467
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. GREGORY H. WOLFCredential: M.D.
Location Address2617 E CHAPMAN AVE, #204Orange, CA 92869-3226
Mailing Address2617 E Chapman Ave, #204Orange, CA 92869-3226 · (714) 633-4040 · Fax (714) 633-1432
Phone(714) 633-4040
Fax(714) 633-1432
Sole ProprietorNo
Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 1982
Enumeration DateMarch 21, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1881653467 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · G050845
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedFamily Medicine · Adult MedicineTaxonomy 207QA0505X · License G050845 (CA)
2617 E CHAPMAN AVE, Orange, CA 92869
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregory H. Wolf M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID648430710
PECOS Enrollment IDI20120327000688
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
313 services155 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
203 services74 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
31 services27 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
17 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92869 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JEFFREY M. DEMBNER, MD, INC.
Neurological Surgery
2617 E CHAPMAN AVE, SUITE 201
ORANGE, CA 92869
Orange County (714) 639-3780
NEWPORT CARE MEDICAL GROUP INC
Orthopaedic Surgery (Orthopaedic Surgery of the Spine)
2617 E CHAPMAN AVE, SUITE 201
ORANGE, CA 92869
Orange County (949) 732-0303
DANIEL D DOBALIAN MD A MEDICAL CORPORATION
Obstetrics & Gynecology
2617 E CHAPMAN AVE, SUITE #312
ORANGE, CA 92869
Orange County (714) 633-4260
DOHENY EYE MEDICAL GROUP
Clinic/Center
2617 E CHAPMAN AVE, SUITE 301
ORANGE, CA 92869
Orange County (323) 442-7152
DR. GRANT WILLIAM ROBICHEAUX M.D.
Orthopaedic Surgery
2617 E CHAPMAN AVE, SUITE 201
ORANGE, CA 92869
Orange County (714) 639-3780
COASTAL CENTER FOR OBESITY, INC
Surgery
2617 E CHAPMAN AVE, 307
ORANGE, CA 92869
Orange County (714) 997-4448
DR. SEMIRA DARIUSHNIA M.D.
Family Medicine
2617 E CHAPMAN AVE
ORANGE, CA 92869
Orange County (714) 288-0052
GOWRIHARAN THAIYANANTHAN MD INC
Neurological Surgery
2617 E CHAPMAN AVE, SUITE 110
ORANGE, CA 92869
Orange County (714) 633-0011

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Wolf's NPI number?

The NPI number for Gregory Wolf is 1881653467. It was assigned to this individual provider in the NPPES registry on March 21, 2006.

Where is Gregory Wolf located?

Gregory Wolf practices at 2617 E Chapman Ave #204, Orange, CA 92869. The listed phone number is (714) 633-4040.

What is Gregory Wolf's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Gregory Wolf enrolled in Medicare?

Yes. Gregory Wolf is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Gregory Wolf was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.