Maja Simic, M.D.
NPI 1245579630 · Internal Medicine Physician · Danbury, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maja Simic, M.D. is a Internal Medicine Physician provider in Danbury, CT (NPI 1245579630).
Provider details
- NPI number
- 1245579630
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 055237 (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
13 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
1,302 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 358 | $134 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 325 | $65 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 202 | $135 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 117 | $15 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 103 | $95 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 101 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 558 | 190 |
| Amlodipine Besylate | 487 | 152 |
| Rosuvastatin Calcium | 272 | 83 |
| Levothyroxine Sodium | 257 | 73 |
| Losartan Potassium | 237 | 77 |
| Metformin Hcl | 191 | 58 |
| Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-02-05
- Last updated
- 2016-05-05
Frequently asked questions
- What is Maja Simic's NPI number?
- Maja Simic's National Provider Identifier (NPI) is 1245579630, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maja Simic's specialty?
- Maja Simic is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maja Simic located?
- Maja Simic's practice location on file with NPPES is 24 Hospital Ave, Danbury, CT 06810-6099.
- What is Maja Simic's phone number?
- The practice phone number listed in the NPPES registry for Maja Simic is (203) 739-6959.
- Does Maja Simic accept Medicare?
- Maja Simic is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maja Simic's NPI active?
- Yes — Maja Simic's NPI (1245579630) is active in the NPPES registry as of the last update on 2016-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.