Carl Wolnisty, M.D.
Internal Medicine Physician · Riverside, CA
Carl Wolnisty, M.D. is an internal medicine physician with a practice address in Riverside, California, and NPI 1912906140, issued on Jul 19, 2005. Check the license (California G5804, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Carl Wolnisty
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G5804 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3838 Sherman Dr, Riverside, CA 92503
- Phone
- (951) 688-5122
- Enumerated
- Jul 19, 2005
- Record last updated
- Aug 3, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (951) 688-8145
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 3838 Sherman Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Carl Wolnisty in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G5804Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,699 Medicare Part D claims for 275 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate159 claims
- Atenolol72 claims
- Lisinopril72 claims
- Levothyroxine Sodium71 claims
- Omeprazole71 claims
- Atorvastatin Calcium68 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: $63.40
3 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. 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.
Carl Wolnisty among 17,696 internal medicine physician records in California
Carl Wolnisty, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2010 · 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).
187 internal medicine physician records list a practice address in Riverside
They are 187 of the 13,893 NPPES records with a practice address in Riverside, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Riverside → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jennifer Chang, M.D.Riverside, CA 925031831364991
- Roger Cheng, M.D.Riverside, CA 925031265458301
- Willie Citrin, MDRiverside, CA 925031558321497
- Fady Fayad, M.D.Riverside, CA 925031205862612
- Bahaa Girgis, M.D.Riverside, CA 925031154519213
- Liwen Han, MDRiverside, CA 925031205030459
- Naila Khan, D.O.Riverside, CA 925031407303324
- Ahmed Kheiter, MDRiverside, CA 925031194896043
Common questions
What is Carl Wolnisty, M.D.'s NPI number?
Carl Wolnisty, M.D.'s National Provider Identifier (NPI) is 1912906140, issued on Jul 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Carl Wolnisty, M.D. located?
The NPPES record lists a practice address at 3838 Sherman Dr, Riverside, CA, 92503. Phone: (951) 688-5122. Providers update this record themselves, so call before visiting.
How can I verify Carl Wolnisty, M.D.'s license?
NPPES lists California license number G5804, 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 Carl Wolnisty, M.D. prescribe under Medicare Part D?
In 2024, Carl Wolnisty, M.D. had 1,699 Medicare Part D claims for 275 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.