NPPES file of Aug 9, 2026

Garrett Muhlstadt, DO

Family Medicine Physician · South Bend, IN

Garrett Muhlstadt, DO is a family medicine physician with a practice address in South Bend, Indiana, and NPI 1609496686, issued on Apr 20, 2020. Check the license (Indiana 02007317A, as entered in NPPES) on the Medical Licensing Board of Indiana; 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
1609496686
Name
Garrett Muhlstadt
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
02007317A IN
5101027157 MI
Self-reported in NPPES; status is on the state search
Practice location
615 N Michigan St FL 1, South Bend, IN 46601
Phone
(574) 647-3050
Enumerated
Apr 20, 2020
Record last updated
Jul 8, 2026
Fax
(574) 647-1094
Medicaid ID
300039759 IN
Medicare enrollment
Enrolled (PECOS I20230905001549); accepts Medicare assignment
Medical or professional school
Marian University College Of Osteopathic Medicine, 2020
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 615 N Michigan St FL 1

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

  1. Haidong Bao, M.D.Internal Medicine Physician1578723573
  2. Sue Bickley, NPNeonatal Nurse Practitioner1801188743
  3. Kirk Bodach, MDHospitalist Physician1306044003
  4. Rebecca Byers, NPNeonatal Nurse Practitioner1275847790
  5. David Chi, MDInternal Medicine Physician1932662780
  6. Katrina GreggFamily Nurse Practitioner1528462900

Verify Garrett Muhlstadt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Licensing Board of Indiana
    Search for license 02007317A
    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 Indiana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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33% fewer Medicare Part D claims than the average family medicine physician in 2024

2,376 Medicare Part D claims for 265 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 52 claims were for opioids.

  1. Garrett Muhlstadt2,376
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium96 claims
  2. Pantoprazole Sodium76 claims
  3. Lisinopril69 claims
  4. Amlodipine Besylate66 claims
  5. Levothyroxine Sodium56 claims
  6. Losartan Potassium56 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: $653.23

37 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Garrett Muhlstadt$653.23
  2. Specialty average$902.55

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. Lakeland Community Hospital WatervlietNiles, MI
  2. Lakeland Medical PracticesNiles, MI

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

Garrett Muhlstadt among 3,506 family medicine physician records in Indiana

Garrett Muhlstadt, DO is one of 3,506 family medicine physician records with a practice address in Indiana. 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 2020, is newer than 89% of them.

  • NPI issued2020 · 89% of these records are older, 8% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2020 · median 2005 among the 2,196 with a school on file
  • Record last updated2026 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

145 family medicine physician records list a practice address in South Bend

They are 145 of the 3,178 NPPES records with a practice address in South Bend, and 3,506 family medicine physician records in Indiana.

The 8 family medicine physician records with the nearest ZIP codes

  1. David Clayton, M.D.South Bend, IN 466011912988460
  2. Anton Crepinsek, MDSouth Bend, IN 466011326038902
  3. Kenneth Elek, M.D.South Bend, IN 466011912995267
  4. Charles Hagenow, M.D.South Bend, IN 466011568450732
  5. Alberta Henderson, M.D.South Bend, IN 466011477541654
  6. Jason Marker, M.D.South Bend, IN 466011215936968
  7. Paul Misch, MDSouth Bend, IN 466011942277876
  8. Dale Patterson, M.D.South Bend, IN 466011033115852

Common questions

What is Garrett Muhlstadt, DO's NPI number?

Garrett Muhlstadt, DO's National Provider Identifier (NPI) is 1609496686, issued on Apr 20, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Garrett Muhlstadt, DO located?

The NPPES record lists a practice address at 615 N Michigan St FL 1, South Bend, IN, 46601. Phone: (574) 647-3050. Providers update this record themselves, so call before visiting.

How can I verify Garrett Muhlstadt, DO's license?

NPPES lists Indiana license number 02007317A, 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 Garrett Muhlstadt, DO prescribe under Medicare Part D?

In 2024, Garrett Muhlstadt, DO had 2,376 Medicare Part D claims for 265 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.