Jeffrey Pellenberg, MD
NPI 1285640284 · Internal Medicine Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Pellenberg, MD is a Internal Medicine Physician provider in New Haven, CT (NPI 1285640284).
Provider details
- NPI number
- 1285640284
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 031548 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
39 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Hemoglobin A1c Level83036 | 39 | $10 |
Typical Medicare-allowed amounts for these services range $10–$10 (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 · 140 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 526 | 153 |
| Amlodipine Besylate | 458 | 134 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 375 | 85 |
| Oxycodone Hcl | 326 | 33 |
| Ibuprofen | 236 | 76 |
| Pantoprazole Sodium | 213 | 65 |
| Tamsulosin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2015-05-18
Frequently asked questions
- What is Jeffrey Pellenberg's NPI number?
- Jeffrey Pellenberg's National Provider Identifier (NPI) is 1285640284, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Pellenberg's specialty?
- Jeffrey Pellenberg is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Pellenberg located?
- Jeffrey Pellenberg's practice location on file with NPPES is 400 Columbus Ave, New Haven, CT 06519-1233.
- What is Jeffrey Pellenberg's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Pellenberg is (203) 503-3010.
- Does Jeffrey Pellenberg accept Medicare?
- Jeffrey Pellenberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Pellenberg's NPI active?
- Yes — Jeffrey Pellenberg's NPI (1285640284) is active in the NPPES registry as of the last update on 2015-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.