Donald J. Johannessen, MD
Geriatric Psychiatry Physician · New York, NY
Donald J. Johannessen, MD is a geriatric psychiatry physician with a practice address in New York, New York, and NPI 1295800142, issued on Nov 22, 2006. Check the license (New York 173503, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Donald J. Johannessen
- Credential
- MD
- Primary taxonomy
- Geriatric Psychiatry Physician 2084P0805X
- License number
- 173503 NY
Self-reported in NPPES; status is on the state search - Practice location
- 425 E 79TH St, New York, NY 10021
- Phone
- (212) 249-4739
- Enumerated
- Nov 22, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (212) 737-5574
- Medicaid ID
- 1557886 NY
- Entity
- Type 1 · individual
Also registered at 425 E 79TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Donald J. Johannessen 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 173503Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average geriatric psychiatry physician in 2024
424 Medicare Part D claims for 33 beneficiaries, against an average of 1,485 among the 473 providers of this specialty who prescribed in Part D.
Most prescribed
- Escitalopram Oxalate63 claims
- Gabapentin55 claims
- Mirtazapine47 claims
- Trazodone Hcl32 claims
- Galantamine Er30 claims
- Desvenlafaxine Succinate Er26 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.
Geriatric Psychiatry Physician providers in New York
There are 94 geriatric psychiatry physician records in New York.
Other geriatric psychiatry physician records in New York
- Robert Abrams, MDNew York, NY1730117342
- Kalu Agwu, MDNew York, NY1104840032
- Miguel Alvarez, MDGreenport, NY1922155118
- Diane Annalett, M.D.Buffalo, NY1548277643
- Bienvenida Austria, MDGlen Oaks, NY1083771323
- Jose Baez, MDNew York, NY1497781371
- Veeresh Bajaj, MDAstoria, NY1598959595
- Paulina Bajsarowicz, M.D.Binghamton, NY1003171000
- Dipaloke Banik, MDBrooklyn, NY1942828728
- Arnabh Basu, MDBrooklyn, NY1275811507
Common questions
What is Donald J. Johannessen, MD's NPI number?
Donald J. Johannessen, MD's National Provider Identifier (NPI) is 1295800142, issued on Nov 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Donald J. Johannessen, MD located?
The NPPES record lists a practice address at 425 E 79TH St, New York, NY, 10021. Phone: (212) 249-4739. Providers update this record themselves, so call before visiting.
How can I verify Donald J. Johannessen, MD's license?
NPPES lists New York license number 173503, 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 Donald J. Johannessen, MD prescribe under Medicare Part D?
In 2024, Donald J. Johannessen, MD had 424 Medicare Part D claims for 33 beneficiaries; the average among geriatric psychiatry physician prescribers was 1,485. 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.