Registry data as of Aug 27, 2026

Mark Alvarado, MD

Addiction Medicine (Psychiatry & Neurology) Physician · Brooklyn, NY

Mark Alvarado, MD is an addiction medicine (psychiatry & neurology) physician with a practice address in Brooklyn, New York, and NPI 1821090663, issued on Aug 11, 2005. Check the license on the NYS Education Department, Office of the Professions; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1821090663
Name
Mark Alvarado
Credential
MD
Primary taxonomy
Addiction Medicine (Psychiatry & Neurology) Physician 2084A0401X
Practice location
514 49TH St, Brooklyn, NY 11220
Phone
(718) 437-5235
Enumerated
Aug 11, 2005
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 514 49TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Celeste Aguilar, LCSWSocial Worker1053662494
  2. Madonna Alvarez, L.C.S.W.Social Worker1902967813
  3. Valerie Anderson, L.C.S.W.Clinical Social Worker1699936047
  4. Dora Arocho Rodriguez, PSY.D.Clinical Psychologist1861794083
  5. Jean Bailey, PH.D.Psychologist1376607911
  6. Jennifer Barker-Frey, LMSWClinical Social Worker1407079932

Verify Mark Alvarado in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the ProfessionsCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Addiction Medicine (Psychiatry & Neurology) Physician providers in New York

There are 60 addiction medicine (psychiatry & neurology) physician records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other addiction medicine (psychiatry & neurology) physician records in New York

  1. Jalees Ahmed, MDFarmingdale, NY1215945811
  2. Asjad Bashir, MDJamaica, NY1861957268
  3. Steven Batki, M.D.Syracuse, NY1235165341
  4. Timothy Brennan, MDNew York, NY1689820474
  5. Thomas Brouette, MDAmityville, NY1073541892
  6. Gregory Bunt, M.D.New York, NY1063420057
  7. Ralph Carotenuto, MDAlbany, NY1154463511
  8. Georges Casimir, M.DRockville Centre, NY1295949741
  9. Marianne Chai, M.D.New York, NY1821295577
  10. Luba ChaninBrooklyn, NY1831380989

Common questions

What is Mark Alvarado, MD's NPI number?

Mark Alvarado, MD's National Provider Identifier (NPI) is 1821090663, issued on Aug 11, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark Alvarado, MD located?

The NPPES record lists a practice address at 514 49TH St, Brooklyn, NY, 11220. Phone: (718) 437-5235. Providers update this record themselves, so call before visiting.

How can I verify Mark Alvarado, MD's license?

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.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.