Julia Ahn
NPI 1780055699 · Physician Assistant · Stony Brook, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julia Ahn is a Physician Assistant provider in Stony Brook, NY (NPI 1780055699).
Provider details
- NPI number
- 1780055699
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ibuprofen | 26 | 26 |
| Cephalexin | 16 | 16 |
| Ondansetronbrand: Ondansetron Odt | 14 | 13 |
| Prednisone | 14 | 13 |
| Cefpodoxime Proxetil | 13 | 13 |
| Methocarbamol | 11 | 11 |
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 , 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-10-19
- Last updated
- 2022-10-05
- Certified
- 2022-10-05
Frequently asked questions
- What is Julia Ahn's NPI number?
- Julia Ahn's National Provider Identifier (NPI) is 1780055699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julia Ahn's specialty?
- Julia Ahn is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Julia Ahn located?
- Julia Ahn's practice location on file with NPPES is 101 Nicolls Rd Rm 50, Stony Brook, NY 11794-2508.
- What is Julia Ahn's phone number?
- The practice phone number listed in the NPPES registry for Julia Ahn is (631) 444-2478.
- Does Julia Ahn accept Medicare?
- Julia Ahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julia Ahn's NPI active?
- Yes — Julia Ahn's NPI (1780055699) is active in the NPPES registry as of the last update on 2022-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.