Robert Leon Lynch, M.D.
Internal Medicine Physician · Riverbank, CA
Robert Leon Lynch, M.D. is an internal medicine physician with a practice address in Riverbank, California, and NPI 1184644031, issued on Jul 20, 2006. Check the license (California A065277, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert Leon Lynch
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A065277 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2603 Patterson RD Ste 2, Riverbank, CA 95367
- Phone
- (209) 869-7400
- Enumerated
- Jul 20, 2006
- Record last updated
- Sep 3, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040903000736); accepts Medicare assignment
- Medical or professional school
- University Of Nevada School Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Robert Leon Lynch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A065277Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.4 times the Medicare Part D claims of the average internal medicine physician in 2024
17,060 Medicare Part D claims for 940 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 1,109 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,197 claims
- Levothyroxine Sodium790 claims
- Hydrocodone-Acetaminophen654 claims
- Lisinopril570 claims
- Alprazolam556 claims
- Omeprazole460 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.
Industry payments in 2024: $1,208.94
52 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Robert Leon Lynch among 17,696 internal medicine physician records in California
Robert Leon Lynch, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1996 · median 2004 among the 11,065 with a school on file
- Record last updated2009 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Riverbank → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Allen, M.D.Sonora, CA 953701184687535
- Leslie Brocchini, MDSonora, CA 953701811966047
- Brenda Forrest, M.DSonora, CA 953701538375365
- Jason Jeffery, M.D.Sonora, CA 953701427293836
- Daniel Meador, MDSonora, CA 953701619925989
- James Mosson, M.D.Sonora, CA 953701437135670
- Daniel Phillips, M.D.Sonora, CA 953701720042732
- Maureen Regan, MDSonora, CA 953701477532273
Common questions
What is Robert Leon Lynch, M.D.'s NPI number?
Robert Leon Lynch, M.D.'s National Provider Identifier (NPI) is 1184644031, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Leon Lynch, M.D. located?
The NPPES record lists a practice address at 2603 Patterson RD Ste 2, Riverbank, CA, 95367. Phone: (209) 869-7400. Providers update this record themselves, so call before visiting.
How can I verify Robert Leon Lynch, M.D.'s license?
NPPES lists California license number A065277, 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 Robert Leon Lynch, M.D. prescribe under Medicare Part D?
In 2024, Robert Leon Lynch, M.D. had 17,060 Medicare Part D claims for 940 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.