Mary Ostaszewski, FNP-C
NPI 1003013236 · Family Nurse Practitioner · Sugar Hill, GA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Ostaszewski, FNP-C is a Family Nurse Practitioner provider in Sugar Hill, GA (NPI 1003013236).
Provider details
- NPI number
- 1003013236
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- RN144234 (GA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
636 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 193 | $108 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 150 | $76 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 72 | $14 |
| Urinalysis, Manual Test81002 | 67 | $3 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 66 | $12 |
| Administration of Influenza Virus VaccineG0008 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 105 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 359 | 153 |
| Levothyroxine Sodium | 337 | 158 |
| Amlodipine Besylate | 319 | 161 |
| Lisinopril | 278 | 128 |
| Rosuvastatin Calcium | 241 | 126 |
| Losartan Potassium | 215 | 116 |
| Gabapentin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$53 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-06-29
- Last updated
- 2026-01-09
- Certified
- 2026-01-09
Frequently asked questions
- What is Mary Ostaszewski's NPI number?
- Mary Ostaszewski's National Provider Identifier (NPI) is 1003013236, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ostaszewski's specialty?
- Mary Ostaszewski is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Ostaszewski located?
- Mary Ostaszewski's practice location on file with NPPES is 4720 Nelson Brogdon Blvd, Sugar Hill, GA 30518-3480.
- What is Mary Ostaszewski's phone number?
- The practice phone number listed in the NPPES registry for Mary Ostaszewski is (770) 945-1990.
- Does Mary Ostaszewski accept Medicare?
- Mary Ostaszewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Ostaszewski's NPI active?
- Yes — Mary Ostaszewski's NPI (1003013236) is active in the NPPES registry as of the last update on 2026-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.