NPPES file of Aug 9, 2026

Theodore L. Fellenbaum, M.D.

Obstetrics & Gynecology Physician · Flint, MI

Theodore L. Fellenbaum, M.D. is an obstetrics & gynecology physician with a practice address in Flint, Michigan, and NPI 1366457848, issued on Jul 31, 2006. Check the license (Michigan 4301056913, 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
1366457848
Name
Theodore L. Fellenbaum
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
4301056913 MI
Self-reported in NPPES; status is on the state search
Practice location
4520 Linden Creek Pkwy, Flint, MI 48507
Phone
(810) 733-8200
Enumerated
Jul 31, 2006
Record last updated
Jul 12, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(810) 733-8272
Medicare enrollment
Enrolled (PECOS I20080829000557); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1976
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 4520 Linden Creek Pkwy

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

  1. Frankie Bonner, CPNPPediatric Nurse Practitioner1841620796
  2. Cynthia Horning, MDPediatrics Physician1063514701
  3. Sarah Sanchez, MDPediatrics Physician1700988474

Verify Theodore L. Fellenbaum 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 4301056913
    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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3.8 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024

620 Medicare Part D claims for 169 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Theodore Fellenbaum620
  2. Specialty average165

Most prescribed

  1. Estradiol47 claims
  2. Triamcinolone Acetonide41 claims
  3. Fluconazole39 claims
  4. Clobetasol Propionate33 claims
  5. Betamethasone Dipropionate30 claims
  6. Metronidazole28 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: $1,642.79

43 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Theodore Fellenbaum$1,642.79
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Theodore L. Fellenbaum among 1,776 obstetrics & gynecology physician records in Michigan

Theodore L. Fellenbaum, M.D. is one of 1,776 obstetrics & gynecology physician records with a practice address in Michigan. 73% 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 13% of them.

  • NPI issued2006 · 13% of these records are older, 57% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated1976 · median 2007 among the 1,003 with a school on file
  • Record last updated2013 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Michigan

There are 1,776 obstetrics & gynecology physician records in Michigan.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Sierra Cuthpert, D.O.Flint, MI 485071104171297
  2. Mona Hardas, M.D.Flint, MI 485071356456511
  3. Carlos Lasmarias, MDBurton, MI 485091346223187
  4. Manilal Mewada, M.D.Burton, MI 485091992899546
  5. Atinuke Akinpeloye, M.D.Flint, MI 485031457631012
  6. Ankur Bhardwaj, M.D.Flint, MI 485031578719241
  7. Lavanya Cherukuri, M.D.Flint, MI 485031639147473
  8. Lauren Clever, MDFlint, MI 485031164080776

Common questions

What is Theodore L. Fellenbaum, M.D.'s NPI number?

Theodore L. Fellenbaum, M.D.'s National Provider Identifier (NPI) is 1366457848, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Theodore L. Fellenbaum, M.D. located?

The NPPES record lists a practice address at 4520 Linden Creek Pkwy, Flint, MI, 48507. Phone: (810) 733-8200. Providers update this record themselves, so call before visiting.

How can I verify Theodore L. Fellenbaum, M.D.'s license?

NPPES lists Michigan license number 4301056913, 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 Theodore L. Fellenbaum, M.D. prescribe under Medicare Part D?

In 2024, Theodore L. Fellenbaum, M.D. had 620 Medicare Part D claims for 169 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.