Adam Brian Knowles, M.D.
Psychiatry Physician · Harrison, NY
Adam Brian Knowles, M.D. is a psychiatry physician with a practice address in Harrison, New York, and NPI 1770862948, issued on Aug 5, 2011. Check the license (New York 274585, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Adam Brian Knowles
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 274585 NY
Self-reported in NPPES; status is on the state search - Practice location
- 600 Mamaroneck Ave Ste 400, Harrison, NY 10528
- Phone
- (914) 301-9484
- Enumerated
- Aug 5, 2011
- Record last updated
- Dec 15, 2023
- Fax
- (914) 468-9484
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 6,589 in New York → Look up another NPI →
Also registered at 600 Mamaroneck Ave Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Amar, LCSWClinical Social Worker1659811230
- Fatoumata BarryBehavior Technician1477435626
- Orly Ben-Yoav Nobel, PHDClinical Psychologist1063761005
- Robert BrennerAudiologist-Hearing Aid Fitter1003456195
- Daniel Brooks, LCSWClinical Social Worker1942956784
- Aidan D'AmoreBehavior Technician1174419592
Verify Adam Brian Knowles 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 274585Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average psychiatry physician in 2024
427 Medicare Part D claims for 22 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Lamotrigine47 claims
- Escitalopram Oxalate41 claims
- Quetiapine Fumarate30 claims
- Gabapentin23 claims
- Clonazepam20 claims
- Lorazepam20 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.
Adam Brian Knowles among 6,589 psychiatry physician records in New York
Adam Brian Knowles, M.D. is one of 6,589 psychiatry physician records with a practice address in New York. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 68% of them.
- NPI issued2011 · 68% of these records are older, 30% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 39% of these records are
- Record last updated2023 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
26 psychiatry physician records list a practice address in Harrison
They are 26 of the 713 NPPES records with a practice address in Harrison, and 6,589 psychiatry physician records in New York.
All 6,589 in New York → Every provider in Harrison → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Arthur Badikian, MDHarrison, NY 105281134255946
- Karen Gennaro, MDHarrison, NY 105281255472973
- Eric Grabstein, MDHarrison, NY 105281982713715
- Dean Harlam, M.D.Harrison, NY 105281841339298
- Lynne Hoffman, MDHarrison, NY 105281538261003
- Balkrishna Kalayam, MDHarrison, NY 105281588751663
- Irina Martynova, M.D.Harrison, NY 105281174558787
- Robert Olko, M.D.Harrison, NY 105281528125291
Common questions
What is Adam Brian Knowles, M.D.'s NPI number?
Adam Brian Knowles, M.D.'s National Provider Identifier (NPI) is 1770862948, issued on Aug 5, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Adam Brian Knowles, M.D. located?
The NPPES record lists a practice address at 600 Mamaroneck Ave Ste 400, Harrison, NY, 10528. Phone: (914) 301-9484. Providers update this record themselves, so call before visiting.
How can I verify Adam Brian Knowles, M.D.'s license?
NPPES lists New York license number 274585, 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 Adam Brian Knowles, M.D. prescribe under Medicare Part D?
In 2024, Adam Brian Knowles, M.D. had 427 Medicare Part D claims for 22 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.