Monika Zagaja, M.D.
NPI 1942542337 · Internal Medicine Physician · Waterford, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Monika Zagaja, M.D. is a Internal Medicine Physician provider in Waterford, CT (NPI 1942542337).
Provider details
- NPI number
- 1942542337
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 39913 (SC)
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
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
456 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 278 | $161 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 88 | $74 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 34 | $111 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 30 | $122 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 26 | $107 |
Typical Medicare-allowed amounts for these services range $74–$161 (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.
Practice location
Mailing address
Additional practice locations (2)
- 1113 Parkwest BlvdCharleston, SC 29466-7121Phone: (843) 876-1445
- 12 Farmfield AveCharleston, SC 29407-7755Phone: (843) 556-7942Fax: (843) 556-7295
Registry dates
- Enumerated
- 2013-03-23
- Last updated
- 2025-05-06
- Certified
- 2025-05-06
Frequently asked questions
- What is Monika Zagaja's NPI number?
- Monika Zagaja's National Provider Identifier (NPI) is 1942542337, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Monika Zagaja's specialty?
- Monika Zagaja is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Monika Zagaja located?
- Monika Zagaja's practice location on file with NPPES is 4 Greentree Dr, Waterford, CT 06385-4116.
- What is Monika Zagaja's phone number?
- The practice phone number listed in the NPPES registry for Monika Zagaja is (860) 442-0647.
- Does Monika Zagaja accept Medicare?
- Monika Zagaja is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Monika Zagaja's NPI active?
- Yes — Monika Zagaja's NPI (1942542337) is active in the NPPES registry as of the last update on 2025-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.