Karen A. Reardon, MD
Rheumatology Physician · Manteca, CA
Karen A. Reardon, MD is a rheumatology physician with a practice address in Manteca, California, and NPI 1013095827, issued on Nov 1, 2006. Check the license (California G74304, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Karen A. Reardon
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- G74304 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1079 Eucalyptus Street, Manteca, CA 95337
- Phone
- (209) 284-4561
- Enumerated
- Nov 1, 2006
- Record last updated
- Mar 27, 2024
- Fax
- (209) 284-4562
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Verify Karen A. Reardon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G74304Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average rheumatology physician in 2024
152 Medicare Part D claims for 89 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Prednisone36 claims
- Hydroxychloroquine Sulfate15 claims
- Methotrexate11 claims
- Nabumetone11 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.
Karen A. Reardon among 926 rheumatology physician records in California
Karen A. Reardon, 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 updated2024 · 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 Manteca → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Anupam Chahal, MDManteca, CA 953371972780146
- Meghal Parikh, MDMerced, CA 953401922115856
- Michelle Chu, MDModesto, CA 953501285862573
- Kanwal Khanna, M.D.Modesto, CA 953501487767182
- Crisostomo Baliog, MDModesto, CA 953551932340445
- Farah Mahmood, M.D.Modesto, CA 953551134385974
- Paul Schunke, M.D.Modesto, CA 953551124050430
- Thein Swe, MDModesto, CA 953551124435003
Common questions
What is Karen A. Reardon, MD's NPI number?
Karen A. Reardon, MD's National Provider Identifier (NPI) is 1013095827, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen A. Reardon, MD located?
The NPPES record lists a practice address at 1079 Eucalyptus Street, Manteca, CA, 95337. Phone: (209) 284-4561. Providers update this record themselves, so call before visiting.
How can I verify Karen A. Reardon, MD's license?
NPPES lists California license number G74304, 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 Karen A. Reardon, MD prescribe under Medicare Part D?
In 2024, Karen A. Reardon, MD had 152 Medicare Part D claims for 89 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.