Dagmara Osmanska-Jac, M.D
NPI 1053413138 · Internal Medicine Physician · Chelmsford, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dagmara Osmanska-Jac, M.D is a Internal Medicine Physician provider in Chelmsford, MA (NPI 1053413138).
Provider details
- NPI number
- 1053413138
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Female
- Sole proprietor
- No
- License
- K1892 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
5,259 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 2,993 | $82 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 1,284 | $124 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 464 | $121 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 455 | $181 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 63 | $136 |
Typical Medicare-allowed amounts for these services range $82–$181 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 103 | 97 |
| Atorvastatin Calcium | 92 | 81 |
| Oxycodone Hcl | 88 | 87 |
| Gabapentin | 81 | 79 |
| Metoprolol Succinate | 58 | 51 |
| Amlodipine Besylate | 50 | 48 |
| Enoxaparin Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-01
- Last updated
- 2025-05-28
- Certified
- 2025-05-28
Frequently asked questions
- What is Dagmara Osmanska-Jac's NPI number?
- Dagmara Osmanska-Jac's National Provider Identifier (NPI) is 1053413138, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dagmara Osmanska-Jac's specialty?
- Dagmara Osmanska-Jac is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dagmara Osmanska-Jac located?
- Dagmara Osmanska-Jac's practice location on file with NPPES is 290 Littleton Rd Unit 3, Chelmsford, MA 01824-3429.
- What is Dagmara Osmanska-Jac's phone number?
- The practice phone number listed in the NPPES registry for Dagmara Osmanska-Jac is (978) 685-2460.
- Does Dagmara Osmanska-Jac accept Medicare?
- Dagmara Osmanska-Jac is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dagmara Osmanska-Jac's NPI active?
- Yes — Dagmara Osmanska-Jac's NPI (1053413138) is active in the NPPES registry as of the last update on 2025-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.