Gregory H. Wolf, M.D.
Family Medicine Physician · Orange, CA
Gregory H. Wolf, M.D. is a family medicine physician with a practice address in Orange, California, and NPI 1881653467, issued on Mar 21, 2006. Check the license (California G050845, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gregory H. Wolf
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G050845 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2617 E Chapman Ave, Orange, CA 92869
- Phone
- (714) 633-4040
- Enumerated
- Mar 21, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (714) 633-1432
- Medicare enrollment
- Enrolled (PECOS I20120327000688); accepts Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 1982
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 2617 E Chapman Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Linda Haase, FNPFamily Medicine Physician1699867242
Verify Gregory H. Wolf in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G050845Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% fewer Medicare Part D claims than the average family medicine physician in 2024
3,359 Medicare Part D claims for 215 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 199 claims were for opioids.
Most prescribed
- Progesterone198 claims
- Levothyroxine Sodium173 claims
- Amlodipine Besylate147 claims
- Liothyronine Sodium133 claims
- Hydrocodone-Acetaminophen99 claims
- Atorvastatin Calcium90 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $75.05
3 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Gregory H. Wolf among 17,133 family medicine physician records in California
Gregory H. Wolf, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1982 · median 2005 among the 10,652 with a school on file
- Record last updated2026 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
106 family medicine physician records list a practice address in Orange
They are 106 of the 13,245 NPPES records with a practice address in Orange, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Orange → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Nicole Awad, M.D.Orange, CA 928691295821189
- Robert Budman, MDOrange, CA 928691598725814
- Alex Dariushnia, M.D.Orange, CA 928691336243385
- Semira Dariushnia, M.D.Orange, CA 928691184725053
- Linda Haase, FNPOrange, CA 928691699867242
- Allen Houshiar, DO, MSOrange, CA 928691427076272
- Steven Joe, D.O.Orange, CA 928691649366410
- Virany Kreng, M.D.Orange, CA 928691891881660
Common questions
What is Gregory H. Wolf, M.D.'s NPI number?
Gregory H. Wolf, M.D.'s National Provider Identifier (NPI) is 1881653467, issued on Mar 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory H. Wolf, M.D. located?
The NPPES record lists a practice address at 2617 E Chapman Ave, Orange, CA, 92869. Phone: (714) 633-4040. Providers update this record themselves, so call before visiting.
How can I verify Gregory H. Wolf, M.D.'s license?
NPPES lists California license number G050845, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory H. Wolf, M.D. prescribe under Medicare Part D?
In 2024, Gregory H. Wolf, M.D. had 3,359 Medicare Part D claims for 215 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.