Daniel Gaposchkin, M.D/PH.D.
NPI 1821194879 · Internal Medicine Physician · Waltham, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Gaposchkin, M.D/PH.D. is a Internal Medicine Physician provider in Waltham, MA (NPI 1821194879).
Provider details
- NPI number
- 1821194879
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D/PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 222235 (MA)
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
1,325 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 268 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 244 | $194 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 226 | $139 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 180 | $141 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 90 | $100 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 97 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 550 | 155 |
| Metoprolol Succinate | 287 | 77 |
| Amlodipine Besylate | 252 | 75 |
| Levothyroxine Sodium | 248 | 64 |
| Losartan Potassium | 204 | 58 |
| Omeprazole | 202 | 64 |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-16
- Last updated
- 2012-11-07
Frequently asked questions
- What is Daniel Gaposchkin's NPI number?
- Daniel Gaposchkin's National Provider Identifier (NPI) is 1821194879, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Gaposchkin's specialty?
- Daniel Gaposchkin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Gaposchkin located?
- Daniel Gaposchkin's practice location on file with NPPES is 40 Second Ave, Waltham, MA 02154.
- What is Daniel Gaposchkin's phone number?
- The practice phone number listed in the NPPES registry for Daniel Gaposchkin is (781) 487-4350.
- Does Daniel Gaposchkin accept Medicare?
- Daniel Gaposchkin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Gaposchkin's NPI active?
- Yes — Daniel Gaposchkin's NPI (1821194879) is active in the NPPES registry as of the last update on 2012-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.