Hallie Grotenstein, PA-C
NPI 1265816722 · Physician Assistant · New York, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hallie Grotenstein, PA-C is a Physician Assistant provider in New York, NY (NPI 1265816722).
Provider details
- NPI number
- 1265816722
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 018721 (NY)
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 tenure33% of score
10 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$70 across 2 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
- 2015-07-15
- Last updated
- 2025-09-19
- Certified
- 2025-09-19
Frequently asked questions
- What is Hallie Grotenstein's NPI number?
- Hallie Grotenstein's National Provider Identifier (NPI) is 1265816722, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hallie Grotenstein's specialty?
- Hallie Grotenstein is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Hallie Grotenstein located?
- Hallie Grotenstein's practice location on file with NPPES is 210 E 64th St, New York, NY 10065-7471.
- What is Hallie Grotenstein's phone number?
- The practice phone number listed in the NPPES registry for Hallie Grotenstein is (212) 434-2730.
- Does Hallie Grotenstein accept Medicare?
- Hallie Grotenstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hallie Grotenstein's NPI active?
- Yes — Hallie Grotenstein's NPI (1265816722) is active in the NPPES registry as of the last update on 2025-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.