NPPES file of Aug 9, 2026

Erin Michele Sarzynski, MD

Internal Medicine Physician · Okemos, MI

Erin Michele Sarzynski, MD is an internal medicine physician with a practice address in Okemos, Michigan, and NPI 1669676680, issued on Jun 13, 2007. Check the license (Michigan 4301089745, 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
1669676680
Name
Erin Michele Sarzynski
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
4301089745 MI
Self-reported in NPPES; status is on the state search
Practice location
2446 Jolly RD Ste B, Okemos, MI 48864
Phone
(517) 253-5530
Enumerated
Jun 13, 2007
Record last updated
Apr 30, 2025
Fax
(517) 253-5535
Medicaid ID
1669676680 MI
Medicare enrollment
Enrolled (PECOS I20110928000326); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Human Medicine, 2007
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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Also registered at 2446 Jolly RD Ste B

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

  1. Jessica Bates, AGNPGerontology Nurse Practitioner1912681115
  2. Kathryn Baumgartner, DOFamily Medicine Physician1194349969
  3. Ryan Hook, DOFamily Medicine Physician1871169698
  4. Lance Kortesoja, PAPhysician Assistant1114497930
  5. Rachael Smith, BS, CHWCommunity Health Worker1194576165
  6. Mitchell Steckbeck, DOFamily Medicine Physician1083171367

Verify Erin Michele Sarzynski 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 4301089745
    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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76% fewer Medicare Part D claims than the average internal medicine physician in 2024

760 Medicare Part D claims for 137 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 15 claims were for opioids.

  1. Erin Sarzynski760
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium45 claims
  2. Levothyroxine Sodium36 claims
  3. Lisinopril32 claims
  4. Losartan Potassium31 claims
  5. Albuterol Sulfate Hfa23 claims
  6. Rosuvastatin Calcium20 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: $634.95

36 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer 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.

  1. Erin Sarzynski$634.95
  2. Specialty average$1,303.06

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

  1. Edward W Sparrow Hospital AssociationOkemos, MI
  2. Powerback Rehabilitation LLCJackson, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Erin Michele Sarzynski among 5,735 internal medicine physician records in Michigan

Erin Michele Sarzynski, 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 2007, is newer than 40% of them.

  • NPI issued2007 · 40% of these records are older, 52% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2007 · median 2006 among the 3,564 with a school on file
  • Record last updated2025 · 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).

Internal Medicine Physician providers in Michigan

There are 5,735 internal medicine physician records in Michigan.

The 8 internal medicine physician records with the nearest ZIP codes

  1. David Boechler, MDOkemos, MI 488641407807167
  2. Francesca Buskulic, D.O.Okemos, MI 488641023383668
  3. Robert Digby, M.D.Okemos, MI 488641265660336
  4. Ralph Kelly, M.D.Okemos, MI 488641578518817
  5. Fedon Mavromatis, M.DOkemos, MI 488641093046427
  6. Susan Murray, M.D.Okemos, MI 488641245457605
  7. Aisha Mursaleen, M.D.Okemos, MI 488641376775148
  8. Shanti Virupannavar, D.O.Okemos, MI 488641003109075

Common questions

What is Erin Michele Sarzynski, MD's NPI number?

Erin Michele Sarzynski, MD's National Provider Identifier (NPI) is 1669676680, issued on Jun 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Erin Michele Sarzynski, MD located?

The NPPES record lists a practice address at 2446 Jolly RD Ste B, Okemos, MI, 48864. Phone: (517) 253-5530. Providers update this record themselves, so call before visiting.

How can I verify Erin Michele Sarzynski, MD's license?

NPPES lists Michigan license number 4301089745, 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 Erin Michele Sarzynski, MD prescribe under Medicare Part D?

In 2024, Erin Michele Sarzynski, MD had 760 Medicare Part D claims for 137 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.