Theodore Fellenbaum, M.D.
NPI 1366457848 · Obstetrics & Gynecology Physician · Flint, MI
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Theodore Fellenbaum, M.D. is a Obstetrics & Gynecology Physician provider in Flint, MI (NPI 1366457848).
Provider details
- NPI number
- 1366457848
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 4301056913 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
316 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 181 | $118 |
| Urinalysis, Manual Test81002 | 47 | $3 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 46 | $82 |
| Ultrasound Scan of Uterus, Ovaries, Tubes, Cervix and Pelvic Area Through Vagina76830 | 24 | $109 |
| Complete Ultrasound Scan of Pelvis76856 | 18 | $96 |
Typical Medicare-allowed amounts for these services range $3–$118 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 47 | 24 |
| Triamcinolone Acetonide | 41 | 32 |
| Fluconazole | 39 | 20 |
| Clobetasol Propionate | 33 | 22 |
| Betamethasone Dipropionate | 30 | 20 |
| Metronidazole | 28 | 20 |
| Clindamycin Phosphate | 25 | 23 |
| Mometasone Furoate | 24 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,643 across 43 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2013-07-12
Frequently asked questions
- What is Theodore Fellenbaum's NPI number?
- Theodore Fellenbaum's National Provider Identifier (NPI) is 1366457848, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theodore Fellenbaum's specialty?
- Theodore Fellenbaum is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Theodore Fellenbaum located?
- Theodore Fellenbaum's practice location on file with NPPES is 4520 Linden Creek Pkwy, Flint, MI 48507-2969.
- What is Theodore Fellenbaum's phone number?
- The practice phone number listed in the NPPES registry for Theodore Fellenbaum is (810) 733-8200.
- Does Theodore Fellenbaum accept Medicare?
- Theodore Fellenbaum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Theodore Fellenbaum's NPI active?
- Yes — Theodore Fellenbaum's NPI (1366457848) is active in the NPPES registry as of the last update on 2013-07-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.