Mark Homonoff, M.D.
NPI 1003934035 · Neurology Physician · Sleepy Hollow, NY
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Homonoff, M.D. is a Neurology Physician provider in Sleepy Hollow, NY (NPI 1003934035).
Provider details
- NPI number
- 1003934035
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- TPME235 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
170 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 74 | $129 |
| Critical Care, First 30-74 Minutes99291 | 58 | $232 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 38 | $188 |
Typical Medicare-allowed amounts for these services range $129–$232 (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.
$149 across 1 record (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
Additional practice locations (1)
- 1701 S Creasy LnLafayette, IN 47905-4972Phone: (765) 502-4400Fax: (765) 502-4401
Registry dates
- Enumerated
- 2007-03-27
- Last updated
- 2022-07-07
- Certified
- 2022-07-07
Frequently asked questions
- What is Mark Homonoff's NPI number?
- Mark Homonoff's National Provider Identifier (NPI) is 1003934035, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Homonoff's specialty?
- Mark Homonoff is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Homonoff located?
- Mark Homonoff's practice location on file with NPPES is 755 N Broadway Ste 417, Sleepy Hollow, NY 10591-1083.
- What is Mark Homonoff's phone number?
- The practice phone number listed in the NPPES registry for Mark Homonoff is (914) 366-5330.
- Does Mark Homonoff accept Medicare?
- Mark Homonoff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Homonoff's NPI active?
- Yes — Mark Homonoff's NPI (1003934035) is active in the NPPES registry as of the last update on 2022-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.