NPPES file of Aug 9, 2026

James A. Heinsimer, MD

Cardiovascular Disease Physician · Royal Oak, MI

James A. Heinsimer, MD is a cardiovascular disease physician with a practice address in Royal Oak, Michigan, and NPI 1861468316, issued on Feb 24, 2006. Check the license (Michigan 4301049901, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861468316
Name
James A. Heinsimer
Credential
MD
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
4301049901 MI
Self-reported in NPPES; status is on the state search
Practice location
3535 W 13 Mile RD Ste 504, Royal Oak, MI 48073
Phone
(248) 551-0066
Enumerated
Feb 24, 2006
Record last updated
Nov 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(248) 481-9605
Medicaid ID
2742939 MI
Medicare enrollment
Enrolled (PECOS I20040315000609); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1977
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify James A. Heinsimer 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 4301049901
    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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81% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

584 Medicare Part D claims for 32 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.

  1. James Heinsimer584
  2. Specialty average3,078

Most prescribed

  1. Atorvastatin Calcium53 claims
  2. Metoprolol Succinate53 claims
  3. Rosuvastatin Calcium34 claims
  4. Ezetimibe30 claims
  5. Amlodipine Besylate25 claims
  6. Eliquis21 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.

James A. Heinsimer among 860 cardiovascular disease physician records in Michigan

James A. Heinsimer, MD is one of 860 cardiovascular disease physician records with a practice address in Michigan. 84% 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 20% of them.

  • NPI issued2006 · 20% of these records are older, 44% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1977 · median 1999 among the 606 with a school on file
  • Record last updated2020 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Michigan

There are 860 cardiovascular disease physician records in Michigan.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Costa Andreou, MDRoyal Oak, MI 480731114925419
  2. Kavitha Chinnaiyan, M.D.Royal Oak, MI 480731528171105
  3. Pertha Chowdhury, MDRoyal Oak, MI 480731801878111
  4. Harold Friedman, MDRoyal Oak, MI 480731932181526
  5. James Goldstein, MDRoyal Oak, MI 480731407830847
  6. Douglas Horstmanshof, MDRoyal Oak, MI 480731881688760
  7. Mary Lazar, MDRoyal Oak, MI 480731255313219
  8. Robert Levin, MDRoyal Oak, MI 480731245211648

Common questions

What is James A. Heinsimer, MD's NPI number?

James A. Heinsimer, MD's National Provider Identifier (NPI) is 1861468316, issued on Feb 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James A. Heinsimer, MD located?

The NPPES record lists a practice address at 3535 W 13 Mile RD Ste 504, Royal Oak, MI, 48073. Phone: (248) 551-0066. Providers update this record themselves, so call before visiting.

How can I verify James A. Heinsimer, MD's license?

NPPES lists Michigan license number 4301049901, 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 James A. Heinsimer, MD prescribe under Medicare Part D?

In 2024, James A. Heinsimer, MD had 584 Medicare Part D claims for 32 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.