Derek Tennenhouse, M.D.
NPI 1689813073 · Obstetrics & Gynecology Physician · Carmel, IN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Derek Tennenhouse, M.D. is a Obstetrics & Gynecology Physician provider in Carmel, IN (NPI 1689813073).
Provider details
- NPI number
- 1689813073
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 01056104C (IN)
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
17 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
2,550 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 1,001 | $98 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 540 | $68 |
| Initial Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 35 Minutes99305 | 261 | $122 |
| Removal of Skin and Tissue, 20.0 Sq Cm Or Less11042 | 257 | $117 |
| Fluorescence Wound Imaging for Bacteria, First Anatomic Site0598T | 185 | $59 |
| Initial Nursing Facility Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99304 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Collagenase Clostridium Hist.brand: Santyl | 112 | 44 |
| Metronidazole | 45 | 21 |
| Gentamicin Sulfate | 43 | 13 |
| Doxycycline Hyclate | 35 | 15 |
| Triamcinolone Acetonide | 33 | — |
| Silver Sulfadiazinebrand: Ssd | 17 | — |
| Ciprofloxacin Hcl | 16 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$114 across 1 record (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
- 2009-02-10
- Last updated
- 2017-02-25
Frequently asked questions
- What is Derek Tennenhouse's NPI number?
- Derek Tennenhouse's National Provider Identifier (NPI) is 1689813073, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Tennenhouse's specialty?
- Derek Tennenhouse is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Derek Tennenhouse located?
- Derek Tennenhouse's practice location on file with NPPES is 1200 W Carmel Dr, Carmel, IN 46032-8707.
- What is Derek Tennenhouse's phone number?
- The practice phone number listed in the NPPES registry for Derek Tennenhouse is (317) 796-3897.
- Does Derek Tennenhouse accept Medicare?
- Derek Tennenhouse is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Derek Tennenhouse's NPI active?
- Yes — Derek Tennenhouse's NPI (1689813073) is active in the NPPES registry as of the last update on 2017-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.