Stephen Dayan, M.D.
NPI 1134103500 · Anesthesiology Physician · New Rochelle, NY
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Dayan, M.D. is a Anesthesiology Physician provider in New Rochelle, NY (NPI 1134103500).
Provider details
- NPI number
- 1134103500
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 171190 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
428 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 Other Procedure on Large Bowel Using an Endoscope00811 | 158 | $151 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 141 | $176 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 77 | $161 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 52 | $126 |
Typical Medicare-allowed amounts for these services range $126–$176 (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.
$584 across 27 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
- 2005-11-30
- Last updated
- 2008-08-04
Frequently asked questions
- What is Stephen Dayan's NPI number?
- Stephen Dayan's National Provider Identifier (NPI) is 1134103500, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Dayan's specialty?
- Stephen Dayan is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Dayan located?
- Stephen Dayan's practice location on file with NPPES is 10 Commerce Dr, New Rochelle, NY 10801-5214.
- What is Stephen Dayan's phone number?
- The practice phone number listed in the NPPES registry for Stephen Dayan is (914) 637-3510.
- Does Stephen Dayan accept Medicare?
- Stephen Dayan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Dayan's NPI active?
- Yes — Stephen Dayan's NPI (1134103500) is active in the NPPES registry as of the last update on 2008-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.