Randy R. Lehmer, MD
Rheumatology Physician · Anaheim, CA
Randy R. Lehmer, MD is a rheumatology physician with a practice address in Anaheim, California, and NPI 1770654683, issued on Nov 13, 2006. Check the license (California G51225, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Randy R. Lehmer
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- G51225 CA
Self-reported in NPPES; status is on the state search - Practice location
- 441 N Lakeview Ave, Anaheim, CA 92807
- Phone
- (888) 988-2800
- Enumerated
- Nov 13, 2006
- Record last updated
- Nov 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 441 N Lakeview Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mark Abramson, MDInternal Medicine Physician1396812202
- Suzanne Ackley, MDNeuromusculoskeletal Medicine & OMM Physician1740351667
- Carol Ahmed, D.O.Family Medicine Physician1598962961
Verify Randy R. Lehmer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G51225Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average rheumatology physician in 2024
34 Medicare Part D claims for 34 beneficiaries, against an average of 1,978 among the 6,301 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.
Randy R. Lehmer among 926 rheumatology physician records in California
Randy R. Lehmer, MD is one of 926 rheumatology 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2021 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in Anaheim → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Kara Bradford, M.D.Anaheim, CA 928071457582488
- Parke Chang, MDAnaheim, CA 928071013122605
- Charles Kenyon, MDAnaheim, CA 928071043417447
- Swati Medhekar, MDAnaheim, CA 928071427125442
- Bryon Tseng, M.D.Anaheim, CA 928071205154218
- Kumar Venkat, MDAnaheim, CA 928071255489076
- Nicholas Kim, M.D.Anaheim, CA 928041235227760
- Maryam Gul, M.D.Anaheim, CA 928021497015192
Common questions
What is Randy R. Lehmer, MD's NPI number?
Randy R. Lehmer, MD's National Provider Identifier (NPI) is 1770654683, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Randy R. Lehmer, MD located?
The NPPES record lists a practice address at 441 N Lakeview Ave, Anaheim, CA, 92807. Phone: (888) 988-2800. Providers update this record themselves, so call before visiting.
How can I verify Randy R. Lehmer, MD's license?
NPPES lists California license number G51225, 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 Randy R. Lehmer, MD prescribe under Medicare Part D?
In 2024, Randy R. Lehmer, MD had 34 Medicare Part D claims for 34 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.