Charles Ernest Weidmann, M.D.
Rheumatology Physician · Van Nuys, CA
Charles Ernest Weidmann, M.D. is a rheumatology physician with a practice address in Van Nuys, California, and NPI 1851372288, issued on Nov 11, 2005. Check the license (California G048620, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Charles Ernest Weidmann
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- G048620 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15243 Vanowen St, Van Nuys, CA 91405
- Phone
- (818) 781-0232
- Enumerated
- Nov 11, 2005
- Record last updated
- Jan 22, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (818) 781-4132
- Medicaid ID
- 00G486200 CA
- Medicare enrollment
- Enrolled (PECOS I20031210000426); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1981
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 15243 Vanowen St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Charles Ernest Weidmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G048620Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,772 Medicare Part D claims for 211 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 212 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen160 claims
- Prolia132 claims
- Orencia121 claims
- Gabapentin106 claims
- Methotrexate103 claims
- Actemra86 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.
The MIPS final score for 2023 (Medicare payment program): 11.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $107.53
1 payment: food and beverage; the largest payer was Amgen Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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.
Bills Medicare through one group practice
- Center For Rheumatology Medical CorporationLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles Ernest Weidmann among 926 rheumatology physician records in California
Charles Ernest Weidmann, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1981 · median 2003 among the 641 with a school on file
- Record last updated2015 · 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 Van Nuys → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Raz Khavari, MDVan Nuys, CA 914051912020785
- Joshua Levy, M.D.Sherman Oaks, CA 914031821191750
- Minh Chau Nguyen, M.D.Panorama City, CA 914021770613614
- Bruce Tang, MDPanorama City, CA 914021598813388
- Hamayon Babary, M.D.Santa Clarita, CA 913871356684385
- Lisa ZhuEncino, CA 914361235524596
- Byung Ban, D.O.Woodland Hills, CA 913671437512134
- David Hurwitz, MDWoodland Hills, CA 913671073661872
Common questions
What is Charles Ernest Weidmann, M.D.'s NPI number?
Charles Ernest Weidmann, M.D.'s National Provider Identifier (NPI) is 1851372288, issued on Nov 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Charles Ernest Weidmann, M.D. located?
The NPPES record lists a practice address at 15243 Vanowen St, Van Nuys, CA, 91405. Phone: (818) 781-0232. Providers update this record themselves, so call before visiting.
How can I verify Charles Ernest Weidmann, M.D.'s license?
NPPES lists California license number G048620, 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 Charles Ernest Weidmann, M.D. prescribe under Medicare Part D?
In 2024, Charles Ernest Weidmann, M.D. had 1,772 Medicare Part D claims for 211 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Charles Ernest Weidmann, M.D.'s MIPS final score?
The 2023 MIPS final score is 11.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.