Mary Gregory
NPI 1275090581 · Certified Registered Nurse Anesthetist · Mount Kisco, NY
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Gregory is a Certified Registered Nurse Anesthetist provider in Mount Kisco, NY (NPI 1275090581).
Provider details
- NPI number
- 1275090581
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 26NR17447800 (NJ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
7 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
88 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) |
|---|---|---|
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 33 | $247 |
| Anesthesia for Total Hip Replacement01214 | 27 | $222 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 17 | $70 |
| Anesthesia for Procedure on Upper 2/3rd of Thigh Bone01230 | 11 | $257 |
Typical Medicare-allowed amounts for these services range $70–$257 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,418 across 6 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
- 2019-02-22
- Last updated
- 2025-02-05
- Certified
- 2025-02-05
Frequently asked questions
- What is Mary Gregory's NPI number?
- Mary Gregory's National Provider Identifier (NPI) is 1275090581, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Gregory's specialty?
- Mary Gregory is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Gregory located?
- Mary Gregory's practice location on file with NPPES is 400 E Main St, Mount Kisco, NY 10549-3417.
- What is Mary Gregory's phone number?
- The practice phone number listed in the NPPES registry for Mary Gregory is (914) 666-1200.
- Does Mary Gregory accept Medicare?
- Mary Gregory is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Gregory's NPI active?
- Yes — Mary Gregory's NPI (1275090581) is active in the NPPES registry as of the last update on 2025-02-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.