Jonathan Ascher, M.D.
NPI 1881699148 · Anesthesiology Physician · New York, NY
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Ascher, M.D. is a Anesthesiology Physician provider in New York, NY (NPI 1881699148).
Provider details
- NPI number
- 1881699148
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 233250 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
90 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Lens Surgery00142 | 58 | $83 |
| Anesthesia for Other Procedure on Eye00140 | 18 | $107 |
| Anesthesia for Other Procedure on Skin, Muscles, Or Nerves of Head, Neck, and Upper Back00300 | 14 | $114 |
Typical Medicare-allowed amounts for these services range $83–$114 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-14
- Last updated
- 2008-11-19
Frequently asked questions
- What is Jonathan Ascher's NPI number?
- Jonathan Ascher's National Provider Identifier (NPI) is 1881699148, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Ascher's specialty?
- Jonathan Ascher is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Ascher located?
- Jonathan Ascher's practice location on file with NPPES is 310 E 14th St, New York, NY 10003-4201.
- What is Jonathan Ascher's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Ascher is (212) 979-4000.
- Does Jonathan Ascher accept Medicare?
- Jonathan Ascher is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Ascher's NPI active?
- Yes — Jonathan Ascher's NPI (1881699148) is active in the NPPES registry as of the last update on 2008-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.