Lester Samuel Holstein, MD
Family Medicine Physician · Claremont, CA
Lester Samuel Holstein, MD is a family medicine physician with a practice address in Claremont, California, and NPI 1720088792, issued on Jul 29, 2005. Check the license (California G775600, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lester Samuel Holstein
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G775600 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1601 Monte Vista Ave Ste 100, Claremont, CA 91711
- Phone
- (909) 630-7938
- Enumerated
- Jul 29, 2005
- Record last updated
- Feb 25, 2026
- Fax
- (909) 469-2118
- Medicaid IDs
- 00G775600 CA
1720088792 CA - Medicare enrollment
- Enrolled (PECOS I20100818001067); may accept Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1601 Monte Vista Ave Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Thuy BachPhysician Assistant1912443086
- Janae HarrisFamily Nurse Practitioner1003469693
- Millie Mae Hathaway, DOFamily Medicine Physician1043847627
- Jeffrey Ijadi, MDSports Medicine (Family Medicine) Physician1134415854
- Tiffany Kilbas, D.O.Family Medicine Physician1841855962
Verify Lester Samuel Holstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G775600Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average family medicine physician in 2024
7,302 Medicare Part D claims for 656 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. 88 claims were for opioids.
Most prescribed
- Atorvastatin Calcium592 claims
- Levothyroxine Sodium379 claims
- Lisinopril314 claims
- Amlodipine Besylate288 claims
- Omeprazole258 claims
- Simvastatin200 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
- Premier Family Medicine Associates, IncClaremont, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lester Samuel Holstein among 17,133 family medicine physician records in California
Lester Samuel Holstein, MD 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1988 · 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).
34 family medicine physician records list a practice address in Claremont
They are 34 of the 800 NPPES records with a practice address in Claremont, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Claremont → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Alan Bergen, M.D.Claremont, CA 917111700022118
- Javier Chang, M.D.Claremont, CA 917111558565366
- Jennie Ho, M.D.Claremont, CA 917111013082403
- Robyn Jacoby, DOClaremont, CA 917111487623575
- Mary Kasem, MDClaremont, CA 917111982639993
- Yen Lai, MDClaremont, CA 917111033110671
- Paul Orr, M.D.Claremont, CA 917111417950221
- Jin Park, D.O.Claremont, CA 917111992800353
Common questions
What is Lester Samuel Holstein, MD's NPI number?
Lester Samuel Holstein, MD's National Provider Identifier (NPI) is 1720088792, issued on Jul 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Lester Samuel Holstein, MD located?
The NPPES record lists a practice address at 1601 Monte Vista Ave Ste 100, Claremont, CA, 91711. Phone: (909) 630-7938. Providers update this record themselves, so call before visiting.
How can I verify Lester Samuel Holstein, MD's license?
NPPES lists California license number G775600, 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 Lester Samuel Holstein, MD prescribe under Medicare Part D?
In 2024, Lester Samuel Holstein, MD had 7,302 Medicare Part D claims for 656 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.