Robert Dettmer, MD
NPI 1679648281 · Gastroenterology Physician · Stamford, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Dettmer, MD is a Gastroenterology Physician provider in Stamford, CT (NPI 1679648281).
Provider details
- NPI number
- 1679648281
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 038509 (CT)
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
961 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) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 190 | $100 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 157 | $158 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 106 | $256 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 103 | $93 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 87 | $115 |
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 |
|---|---|---|
| Omeprazole | 73 | 22 |
| Famotidine | 56 | 11 |
| Dexlansoprazolebrand: Dexlansoprazole Dr | 51 | — |
| Pantoprazole Sodium | 50 | 17 |
| Mesalamine | 22 | — |
| Prednisone | 21 | — |
| Esomeprazole Magnesium | 19 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,359 across 147 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
- 2006-11-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is Robert Dettmer's NPI number?
- Robert Dettmer's National Provider Identifier (NPI) is 1679648281, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Dettmer's specialty?
- Robert Dettmer is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Dettmer located?
- Robert Dettmer's practice location on file with NPPES is 32 Strawberry Hill Ct, Stamford, CT 06902-2594.
- What is Robert Dettmer's phone number?
- The practice phone number listed in the NPPES registry for Robert Dettmer is (203) 348-5355.
- Does Robert Dettmer accept Medicare?
- Robert Dettmer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Dettmer's NPI active?
- Yes — Robert Dettmer's NPI (1679648281) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.