Stephen M. Rich, MD
Internal Medicine Physician · Windsor, CA
Stephen M. Rich, MD is an internal medicine physician with a practice address in Windsor, California, and NPI 1730263716, issued on Oct 25, 2006. Check the license (California G40922, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen M. Rich
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G40922 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8465 Old Redwood Hwy Ste 320, Windsor, CA 95492
- Phone
- (707) 433-5494
- Enumerated
- Oct 25, 2006
- Record last updated
- Sep 10, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (707) 837-0119
- Medicaid ID
- 00G409220 CA
- Medicare enrollment
- Enrolled (PECOS I20101208001322); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 1978
- Entity
- Type 1 · individual
Also registered at 8465 Old Redwood Hwy Ste 320
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Angelica Andrade, MSWClinical Social Worker1992080196
- Stephanie Avellaneda, MFTStudent in an Organized Health Care Education/Training Program1831012129
- Jamila Benn, MDFamily Medicine Physician1477564946
- Megan Poulsen, PAPhysician Assistant1316668551
- Trong Vang, RN, FNPPrimary Care Nurse Practitioner1407232457
Verify Stephen M. Rich in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G40922Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,867 Medicare Part D claims for 166 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 63 claims were for opioids.
Most prescribed
- Atorvastatin Calcium104 claims
- Lisinopril72 claims
- Amlodipine Besylate71 claims
- Omeprazole68 claims
- Jardiance55 claims
- Lisinopril-Hydrochlorothiazide54 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.
Bills Medicare through one group practice
- Alliance Medical CenterWindsor, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
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Common questions
What is Stephen M. Rich, MD's NPI number?
Stephen M. Rich, MD's National Provider Identifier (NPI) is 1730263716, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen M. Rich, MD located?
The NPPES record lists a practice address at 8465 Old Redwood Hwy Ste 320, Windsor, CA, 95492. Phone: (707) 433-5494. Providers update this record themselves, so call before visiting.
How can I verify Stephen M. Rich, MD's license?
NPPES lists California license number G40922, 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 Stephen M. Rich, MD prescribe under Medicare Part D?
In 2024, Stephen M. Rich, MD had 1,867 Medicare Part D claims for 166 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.