Hilarie Tomasiewicz, M.D./PH.D.
NPI 1841557444 · Neurological Surgery Physician · Marietta, GA
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hilarie Tomasiewicz, M.D./PH.D. is a Neurological Surgery Physician provider in Marietta, GA (NPI 1841557444).
Provider details
- NPI number
- 1841557444
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D./PH.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 306979 (NY)
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 tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
87 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 36 | $77 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 35 | $128 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 16 | $90 |
Typical Medicare-allowed amounts for these services range $77–$128 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 20 | 14 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 13 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$551 across 7 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
Additional practice locations (3)
- 1365 Clifton Rd NeAtlanta, GA 30322-4870Phone: (617) 256-4176
- 1 Gustave L Levy PlNew York, NY 10029-6504Phone: (212) 241-2479
- 525 E 68th StBox 99New York, NY 10065-4870Phone: (866) 426-7787
Registry dates
- Enumerated
- 2012-04-19
- Last updated
- 2023-07-11
- Certified
- 2023-07-11
Frequently asked questions
- What is Hilarie Tomasiewicz's NPI number?
- Hilarie Tomasiewicz's National Provider Identifier (NPI) is 1841557444, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hilarie Tomasiewicz's specialty?
- Hilarie Tomasiewicz is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Hilarie Tomasiewicz located?
- Hilarie Tomasiewicz's practice location on file with NPPES is 61 Whitcher St Ne Ste 3110, Marietta, GA 30060-1179.
- What is Hilarie Tomasiewicz's phone number?
- The practice phone number listed in the NPPES registry for Hilarie Tomasiewicz is (770) 422-2326.
- Does Hilarie Tomasiewicz accept Medicare?
- Hilarie Tomasiewicz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hilarie Tomasiewicz's NPI active?
- Yes — Hilarie Tomasiewicz's NPI (1841557444) is active in the NPPES registry as of the last update on 2023-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.