Daniel Armand Castellani, M.D.
Specialist · Williamsville, NY
Daniel Armand Castellani, M.D. is a specialist with a practice address in Williamsville, New York, and NPI 1669459368, issued on Dec 23, 2005. Check the license (New York 151648-1, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Daniel Armand Castellani
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 151648-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 6245 Sheridan Dr, Williamsville, NY 14221
- Phone
- (716) 626-2647
- Enumerated
- Dec 23, 2005
- Record last updated
- Oct 26, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (716) 204-1400
- Medicare enrollment
- Enrolled (PECOS I20110309000092); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Buffalo School Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest specialist records → All 22,636 in New York → Look up another NPI →
Also registered at 6245 Sheridan Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Baggett, MDEmergency Medical Services (Emergency Medicine) Physician1437102712
- Roberta Beers-Schambach, RPAMedical Physician Assistant1801994694
- Rachel Brown, P.A.Medical Physician Assistant1689961054
- Douglas Bushell, DOEmergency Medical Services (Emergency Medicine) Physician1619916236
- Paul Chan, DOEmergency Medical Services (Emergency Medicine) Physician1144269994
- Sreekrishna Cheruvu, M.D.Emergency Medical Services (Emergency Medicine) Physician1598717720
Verify Daniel Armand Castellani in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 151648-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average specialist in 2024
484 Medicare Part D claims for 53 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Carbidopa-Levodopa65 claims
- Levetiracetam46 claims
- Donepezil Hcl37 claims
- Rivastigmine30 claims
- Gabapentin25 claims
- Memantine Hcl21 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.
Daniel Armand Castellani among 22,636 specialist records in New York
Daniel Armand Castellani, M.D. is one of 22,636 specialist records with a practice address in New York. 6% 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, 99% newer
- In a Medicare fileYes · 6% of these records are
- In the CMS Doctors and Clinicians fileYes · 4% of these records are
- Graduated1981 · median 1990 among the 943 with a school on file
- Record last updated2010 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
49 specialist records list a practice address in Williamsville
They are 49 of the 3,530 NPPES records with a practice address in Williamsville, and 22,636 specialist records in New York.
All 22,636 in New York → Every provider in Williamsville → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Umberto Albanese, M.D.Williamsville, NY 142211902862782
- James Cumella, M.D.Williamsville, NY 142211093725665
- John Deberry, M.D.Ambst, NY 142211457314197
- Ravi Desai, MDWilliamsville, NY 142211407810948
- Evan Evans, MDWilliamsville, NY 142211285617431
- Mike Keleher, RNC,NNPWilliamsville, NY 142211174590715
- Todd Koch, M.D.Williamsville, NY 142211649241795
- Edward Legarreta, MDWilliamsville, NY 142211942265988
Common questions
What is Daniel Armand Castellani, M.D.'s NPI number?
Daniel Armand Castellani, M.D.'s National Provider Identifier (NPI) is 1669459368, issued on Dec 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Armand Castellani, M.D. located?
The NPPES record lists a practice address at 6245 Sheridan Dr, Williamsville, NY, 14221. Phone: (716) 626-2647. Providers update this record themselves, so call before visiting.
How can I verify Daniel Armand Castellani, M.D.'s license?
NPPES lists New York license number 151648-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Daniel Armand Castellani, M.D. prescribe under Medicare Part D?
In 2024, Daniel Armand Castellani, M.D. had 484 Medicare Part D claims for 53 beneficiaries; the average among specialist prescribers was 1,380. 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.