Jeffrey R. Richardson, M D
Gynecology Physician · Ventura, CA
Jeffrey R. Richardson, M D is a gynecology physician with a practice address in Ventura, California, and NPI 1568454171, issued on Aug 19, 2005. Check the license (California G38557, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jeffrey R. Richardson
- Credential
- M D
- Primary taxonomy
- Gynecology Physician 207VG0400X
- License number
- G38557 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4482 Market St, Ventura, CA 93003
- Phone
- (805) 535-4422
- Enumerated
- Aug 19, 2005
- Record last updated
- Nov 30, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (805) 648-4426
- Entity
- Type 1 · individual
8 nearest gynecology physician records → All 369 in California → Look up another NPI →
Also registered at 4482 Market St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dorothy Diehl, MFTMarriage & Family Therapist1942295688
- Shirley Hansen, LCSWClinical Social Worker1356496657
- Rebecca HolguinClinical Social Worker1235800715
- Madeleine Waddell, MA MFTMarriage & Family Therapist1376602664
Verify Jeffrey R. Richardson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G38557Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average gynecology physician in 2024
20 Medicare Part D claims, against an average of 299 among the 1,919 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: $40.00
1 payment: consulting fee; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 1,398 providers of this specialty with any payment received $2,469.88 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.
Jeffrey R. Richardson among 369 gynecology physician records in California
Jeffrey R. Richardson, M D is one of 369 gynecology physician records with a practice address in California. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2017 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VG0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecology Physician providers in California
There are 369 gynecology physician records in California.
All 369 in California → Every provider in Ventura → Gynecology Physician nationwide →
The 8 gynecology physician records with the nearest ZIP codes
- Jill Hall, M.D.Ventura, CA 930031265607204
- Joseph Marmet, M.D.Ventura, CA 930031477567667
- Rosalind Warner, M.D.Ventura, CA 930031912050006
- Kathleen Griffin, M.D.Santa Barbara, CA 931011538115845
- Virginia Siegfried, M.D.Santa Barbara, CA 931011548215932
- Sharon Goldberg, M.D.Santa Barbara, CA 931051366412314
- Lynn Rudman, MDSanta Barbara, CA 931051710971353
- Morton Sacks, M.D.Santa Barbara, CA 931091518122514
Common questions
What is Jeffrey R. Richardson, M D's NPI number?
Jeffrey R. Richardson, M D's National Provider Identifier (NPI) is 1568454171, issued on Aug 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey R. Richardson, M D located?
The NPPES record lists a practice address at 4482 Market St, Ventura, CA, 93003. Phone: (805) 535-4422. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey R. Richardson, M D's license?
NPPES lists California license number G38557, 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 Jeffrey R. Richardson, M D prescribe under Medicare Part D?
In 2024, Jeffrey R. Richardson, M D had 20 Medicare Part D claims; the average among gynecology physician prescribers was 299. 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.