Stephen Grayson, MD
Emergency Medicine Physician · Mount Kisco, NY
Stephen Grayson, MD is an emergency medicine physician with a practice address in Mount Kisco, New York, and NPI 1063405496, issued on Aug 31, 2005. Check the license (New York 133867, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Stephen Grayson
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 133867 NY
Self-reported in NPPES; status is on the state search - Practice location
- 400 E Main St, Mount Kisco, NY 10549
- Phone
- (914) 666-1254
- Enumerated
- Aug 31, 2005
- Record last updated
- Jan 22, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (914) 666-1268
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 400 E Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Stephen Grayson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 133867Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average emergency medicine physician in 2024
52 Medicare Part D claims, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Stephen Grayson among 5,025 emergency medicine physician records in New York
Stephen Grayson, MD is one of 5,025 emergency medicine physician records with a practice address in New York. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 97% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2014 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 emergency medicine physician records list a practice address in Mount Kisco
They are 12 of the 1,003 NPPES records with a practice address in Mount Kisco, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in Mount Kisco → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Herberth Balsells, D.O.Mount Kisco, NY 105491013216571
- Brian Blaufeux, MDMount Kisco, NY 105491992856637
- Laurence Degelsmith, MDMount Kisco, NY 105491720072556
- Mitchell Fischer, DOMt Kisco, NY 105491487640157
- Lisa Geller, MDMount Kisco, NY 105491114097391
- Timothy Haydock, MDMount Kisco, NY 105491609843705
- Carol Killian, MDMount Kisco, NY 105491841285335
- Lewis Kohl, DOMount Kisco, NY 105491689725343
Common questions
What is Stephen Grayson, MD's NPI number?
Stephen Grayson, MD's National Provider Identifier (NPI) is 1063405496, issued on Aug 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Grayson, MD located?
The NPPES record lists a practice address at 400 E Main St, Mount Kisco, NY, 10549. Phone: (914) 666-1254. Providers update this record themselves, so call before visiting.
How can I verify Stephen Grayson, MD's license?
NPPES lists New York license number 133867, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stephen Grayson, MD prescribe under Medicare Part D?
In 2024, Stephen Grayson, MD had 52 Medicare Part D claims; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.