Frederick Allen Walther, MD
Emergency Medicine Physician · Yorktown Heights, NY
Frederick Allen Walther, MD is an emergency medicine physician with a practice address in Yorktown Heights, New York, and NPI 1508870163, issued on Jul 28, 2006. Check the license (New York 197145, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Frederick Allen Walther
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 197145 NY
Self-reported in NPPES; status is on the state search - Practice location
- 225 Veterans RD, Yorktown Heights, NY 10598
- Phone
- (914) 241-1050
- Enumerated
- Jul 28, 2006
- Record last updated
- Sep 9, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (914) 455-2980
- Medicaid ID
- 01571508 NY
- Medicare enrollment
- Enrolled (PECOS I20090504000436); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 225 Veterans RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ellen Giorgadze, FNPFamily Nurse Practitioner1255738399
- Robert Marcus, MDEmergency Medicine Physician1710972104
- Kelly Marra, FNPFamily Nurse Practitioner1538580246
- Ellen Morris, FNPFamily Nurse Practitioner1679858302
- Daniel Rothberg, MDEmergency Medicine Physician1003838343
- Patrice Sonara, DOEmergency Medicine Physician1649362393
Verify Frederick Allen Walther 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 197145Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average emergency medicine physician in 2024
533 Medicare Part D claims for 426 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin65 claims
- Amoxicillin-Clavulanate Potass54 claims
- Methylprednisolone43 claims
- Azithromycin40 claims
- Paxlovid35 claims
- Doxycycline Hyclate27 claims
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.
Bills Medicare through one group practice
- Optum Medical Care PCMount Kisco, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Frederick Allen Walther among 5,025 emergency medicine physician records in New York
Frederick Allen Walther, 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 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 72% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1986 · median 2013 among the 3,232 with a school on file
- Record last updated2016 · 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).
6 emergency medicine physician records list a practice address in Yorktown Heights
They are 6 of the 635 NPPES records with a practice address in Yorktown Heights, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in Yorktown Heights → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Ali Khan, MDYorktown Heights, NY 105981700856929
- Robert Marcus, MDYorktown Heights, NY 105981710972104
- Daniel Rothberg, MDYorktown Heights, NY 105981003838343
- Patrice Sonara, DOYorktown Heights, NY 105981649362393
- James Spencer, MDYorktown Heights, NY 105981922172220
- Robert Acosta, MDValhalla, NY 105951386656148
- Benjamin Bernstein, M.D.Valhalla, NY 105951871739656
- Sulin Chung, M.D.Valhalla, NY 105951205154796
Common questions
What is Frederick Allen Walther, MD's NPI number?
Frederick Allen Walther, MD's National Provider Identifier (NPI) is 1508870163, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Frederick Allen Walther, MD located?
The NPPES record lists a practice address at 225 Veterans RD, Yorktown Heights, NY, 10598. Phone: (914) 241-1050. Providers update this record themselves, so call before visiting.
How can I verify Frederick Allen Walther, MD's license?
NPPES lists New York license number 197145, 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 Frederick Allen Walther, MD prescribe under Medicare Part D?
In 2024, Frederick Allen Walther, MD had 533 Medicare Part D claims for 426 beneficiaries; 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.