Karen R. Ringwald, MD
Rheumatology Physician · Fort Wayne, IN
Karen R. Ringwald, MD is a rheumatology physician with a practice address in Fort Wayne, Indiana, and NPI 1922075084, issued on Mar 7, 2006. Check the license (Indiana 01055867A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Karen R. Ringwald
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 01055867A IN
Self-reported in NPPES; status is on the state search - Practice location
- 7910 W Jefferson Blvd Ste 217, Fort Wayne, IN 46804
- Phone
- (260) 234-2698
- Enumerated
- Mar 7, 2006
- Record last updated
- Jan 15, 2026
- Fax
- (260) 344-4203
- Medicaid IDs
- 2493145 OH
200309590 IN - Medicare enrollment
- Enrolled (PECOS I20040906000034); accepts Medicare assignment
- Medical or professional school
- Medical College Of Ohio, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 127 in Indiana → Look up another NPI →
Also registered at 7910 W Jefferson Blvd Ste 217
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anil Rao, M.D.Rheumatology Physician1649216391
- Monica Reddy, MDRheumatology Physician1619178811
Verify Karen R. Ringwald in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01055867ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average rheumatology physician in 2024
4,367 Medicare Part D claims for 549 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 222 claims were for opioids.
Most prescribed
- Hydroxychloroquine Sulfate719 claims
- Prednisone678 claims
- Methotrexate633 claims
- Leflunomide262 claims
- Humira(Cf) Pen135 claims
- Methylprednisolone119 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): 88 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: $583.43
31 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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 2 group practices
- American Oncology Partners PAFort Wayne, IN
- Lutheran Medical Group LLCHuntington, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen R. Ringwald among 127 rheumatology physician records in Indiana
Karen R. Ringwald, MD is one of 127 rheumatology physician records with a practice address in Indiana. 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 15% of them.
- NPI issued2006 · 15% of these records are older, 48% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1999 · median 2001 among the 87 with a school on file
- Record last updated2026 · 43% 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 Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Indiana
There are 127 rheumatology physician records in Indiana.
All 127 in Indiana → Every provider in Fort Wayne → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Steven Ko, MDFort Wayne, IN 468041992771257
- Nina Ramessar, MBBS,MDFort Wayne, IN 468041467763201
- Anil Rao, M.D.Fort Wayne, IN 468041649216391
- Monica Reddy, MDFort Wayne, IN 468041619178811
- Ana Leal Bramasco, M.D.Fort Wayne, IN 468051497321178
- Marc Wooten, M.D.Fort Wayne, IN 468051619984341
- Kenneth Smith, MDFort Wayne, IN 468251003907304
- Steven Behrendsen, D.O.Fort Wayne, IN 468451306812656
Common questions
What is Karen R. Ringwald, MD's NPI number?
Karen R. Ringwald, MD's National Provider Identifier (NPI) is 1922075084, issued on Mar 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen R. Ringwald, MD located?
The NPPES record lists a practice address at 7910 W Jefferson Blvd Ste 217, Fort Wayne, IN, 46804. Phone: (260) 234-2698. Providers update this record themselves, so call before visiting.
How can I verify Karen R. Ringwald, MD's license?
NPPES lists Indiana license number 01055867A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen R. Ringwald, MD prescribe under Medicare Part D?
In 2024, Karen R. Ringwald, MD had 4,367 Medicare Part D claims for 549 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Karen R. Ringwald, MD's MIPS final score?
The 2023 MIPS final score is 88 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.