NPPES file of Aug 9, 2026

Ruth A. Rydstedt, MD

Internal Medicine Physician · Mount Clemens, MI

Ruth A. Rydstedt, MD is an internal medicine physician with a practice address in Mount Clemens, Michigan, and NPI 1326045584, issued on Jul 2, 2005. Check the license (Michigan 4301039926, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1326045584
Name
Ruth A. Rydstedt
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
4301039926 MI
Self-reported in NPPES; status is on the state search
Practice location
133 S Main St, Mount Clemens, MI 48043
Phone
(586) 465-1326
Enumerated
Jul 2, 2005
Record last updated
Dec 22, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(586) 465-0329
Medicaid ID
1387291 MI
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 133 S Main St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nikhil Ambulgekar, M.D.Cardiovascular Disease Physician1497074264
  2. Robert Chang, MDInternal Medicine Physician1093712093
  3. Christopher Davis, PA-CPhysician Assistant1962637686
  4. Arsenio De Leon, M.D.Pulmonary Disease Physician1689737041
  5. Tara Deryavoush, D.OInternal Medicine Physician1851718092
  6. Adrienne Doerr, P.A.Physician Assistant1568652410

Verify Ruth A. Rydstedt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301039926
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

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98% fewer Medicare Part D claims than the average internal medicine physician in 2024

67 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Ruth Rydstedt67
  2. Specialty average3,176

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 practice group's MIPS final score for 2023 (Medicare payment program): 84.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score82.2
  2. Costout of 100 · 30%65.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Ruth A. Rydstedt among 5,735 internal medicine physician records in Michigan

Ruth A. Rydstedt, MD is one of 5,735 internal medicine physician records with a practice address in Michigan. 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, 90% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2020 · 54% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

39 internal medicine physician records list a practice address in Mount Clemens

They are 39 of the 858 NPPES records with a practice address in Mount Clemens, and 5,735 internal medicine physician records in Michigan.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Youssef Abbiss, D.O.Mount Clemens, MI 480431982991881
  2. Ernesto Bedia, M.D.Mount Clemens, MI 480431346301645
  3. Elizabeth Brooks, D.O.Mount Clemens, MI 480431184852204
  4. Robert Chang, MDMount Clemens, MI 480431093712093
  5. Tara Deryavoush, D.OMount Clemens, MI 480431851718092
  6. Jerome Finkel, M.D.Mount Clemens, MI 480431942206735
  7. Pasquale Iaderosa, MDMount Clemens, MI 480431962409094
  8. Gurdeep Kaur, M.D.Mount Clemens, MI 480431487624235

Common questions

What is Ruth A. Rydstedt, MD's NPI number?

Ruth A. Rydstedt, MD's National Provider Identifier (NPI) is 1326045584, issued on Jul 2, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ruth A. Rydstedt, MD located?

The NPPES record lists a practice address at 133 S Main St, Mount Clemens, MI, 48043. Phone: (586) 465-1326. Providers update this record themselves, so call before visiting.

How can I verify Ruth A. Rydstedt, MD's license?

NPPES lists Michigan license number 4301039926, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ruth A. Rydstedt, MD prescribe under Medicare Part D?

In 2024, Ruth A. Rydstedt, MD had 67 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Ruth A. Rydstedt, MD's MIPS final score?

The 2023 MIPS final score is 84.3 of 100, reported for the practice group. 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.