Lester Holstein, MD
Family Medicine Physician · Claremont, CA
Lester 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 on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lester Holstein
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- Practice location
- 1601 Monte Vista Ave Ste 100, Claremont, CA 91711
- Phone
- (909) 630-7938
- Enumerated
- Jul 29, 2005
- Entity
- Type 1 · individual
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.
- Victor Alvarez Casillas, SA-C, M.D.(IMG)Family Medicine Physician1104111566
- 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 Holstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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 3,519 among the 111,126 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.
One hospital or facility affiliation
- Premier Family Medicine Associates, IncClaremont, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
31 family medicine physician records list a Claremont practice address
They are 31 of the 800 NPPES records with a Claremont practice address, and 16,272 family medicine physician records in California.
All 31 in Claremont → All 16,272 in California → Every provider in Claremont →
Other family medicine physician records in California
- Omer Aba-Omer, MDSanta Monica, CA1649702093
- Michelle Ababa, MDWilmington, CA1710922513
- Anna Tzeitel Abalos, MDRoseville, CA1720200017
- Adan Abarca, MDAnaheim, CA1760553689
- Vanessa Abarca, DOVentura, CA1952040859
- Lorraine Abate, M.D.Sacramento, CA1104840008
- Robert Abatecola, MDCastro Valley, CA1669551719
- Romeo Abaya, M.D.Cottonwood, CA1598053506
- Effiem Abbah, MD, MPHSan Francisco, CA1821185133
- Khuzeman Abbasi, MDSanta Rosa, CA1841979952
Common questions
What is Lester Holstein, MD's NPI number?
Lester 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 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 Holstein, MD's license?
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 Holstein, MD prescribe under Medicare Part D?
In 2024, Lester Holstein, MD had 7,302 Medicare Part D claims for 656 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.