William Michael Hogan, M.D.
Gynecologic Oncology Physician · Ventura, CA
William Michael Hogan, M.D. is a gynecologic oncology physician with a practice address in Ventura, California, and NPI 1477533727, issued on Jan 20, 2006. Check the license (California A45615, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Michael Hogan
- Credential
- M.D.
- Primary taxonomy
- Gynecologic Oncology Physician 207VX0201X
- License number
- A45615 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2900 Loma Vista RD Ste 205, Ventura, CA 93003
- Phone
- (805) 642-4830
- Enumerated
- Jan 20, 2006
- Record last updated
- Jan 30, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (805) 642-3852
- Entity
- Type 1 · individual
8 nearest gynecologic oncology physician records → All 176 in California → Look up another NPI →
Also registered at 2900 Loma Vista RD Ste 205
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Manasi Ghatge, MDHematology & Oncology Physician1891322459
- Olivia Granger-Holland, PA-CPhysician Assistant1013795921
- Deepa Maheswari Narasimhulu, MDGynecologic Oncology Physician1174895882
- Anne Rodriguez, M.D.Gynecologic Oncology Physician1316929565
Verify William Michael Hogan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A45615Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average gynecologic oncology physician in 2024
22 Medicare Part D claims, against an average of 195 among the 1,475 providers of this specialty who prescribed in Part D.
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: $148.13
1 payment: food and beverage; the largest payer was Smith+Nephew, Inc. The 1,199 providers of this specialty with any payment received $6,387.20 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.
William Michael Hogan among 176 gynecologic oncology physician records in California
William Michael Hogan, M.D. is one of 176 gynecologic oncology physician records with a practice address in California. 86% 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, 55% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2019 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecologic Oncology Physician providers in California
There are 176 gynecologic oncology physician records in California.
All 176 in California → Every provider in Ventura → Gynecologic Oncology Physician nationwide →
The 8 gynecologic oncology physician records with the nearest ZIP codes
- Deepa Maheswari Narasimhulu, MDVentura, CA 930031174895882
- Anne Rodriguez, M.D.Ventura, CA 930031316929565
- Sumit Mehta, M.D.Santa Barbara, CA 931051356790836
- Michael L Berman, MDOrange, CA 928681295815371
- Robert Bristow, MDOrange, CA 928681427016039
- Fabio Cappuccini, MDOrange, CA 928681255346763
- Lila MarshallOrange, CA 928681508446907
- Mark Rettenmaier, M.D.Orange, CA 928681134166697
Common questions
What is William Michael Hogan, M.D.'s NPI number?
William Michael Hogan, M.D.'s National Provider Identifier (NPI) is 1477533727, issued on Jan 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Michael Hogan, M.D. located?
The NPPES record lists a practice address at 2900 Loma Vista RD Ste 205, Ventura, CA, 93003. Phone: (805) 642-4830. Providers update this record themselves, so call before visiting.
How can I verify William Michael Hogan, M.D.'s license?
NPPES lists California license number A45615, 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 William Michael Hogan, M.D. prescribe under Medicare Part D?
In 2024, William Michael Hogan, M.D. had 22 Medicare Part D claims; the average among gynecologic oncology physician prescribers was 195. 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.