NPPES file of Aug 9, 2026

Janette Marcelo, M.D.

Internal Medicine Physician · Manhasset, NY

Janette Marcelo, M.D. is an internal medicine physician with a practice address in Manhasset, New York, and NPI 1144337122, issued on Aug 24, 2006. Check the license (New York 163914, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144337122
Name
Janette Marcelo
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
163914 NY
Self-reported in NPPES; status is on the state search
Practice location
1155 Northern Blvd, Manhasset, NY 11030
Phone
(516) 407-4000
Enumerated
Aug 24, 2006
Record last updated
Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
00946323 NY
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 1155 Northern Blvd

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

  1. Arnold Breitbart, M.D.Plastic Surgery Physician1538255567
  2. Jay Dubowsky, M.D.Cardiovascular Disease Physician1285630368
  3. Maekal Elyasi, D.OInternal Medicine Physician1821441890
  4. Barbara Hirsch, MDEndocrinology, Diabetes & Metabolism Physician1679533434
  5. Marlene Mancuso, M.D.Surgery Physician1952561540
  6. Jacqueline O'Boyle, D.O.Family Medicine Physician1164876744

Verify Janette Marcelo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 163914
    Check 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

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2.5 times the Medicare Part D claims of the average internal medicine physician in 2024

8,067 Medicare Part D claims for 587 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 90 claims were for opioids.

  1. Janette Marcelo8,067
  2. Specialty average3,176

Most prescribed

  1. Rosuvastatin Calcium450 claims
  2. Atorvastatin Calcium418 claims
  3. Losartan Potassium377 claims
  4. Levothyroxine Sodium351 claims
  5. Amlodipine Besylate350 claims
  6. Metoprolol Succinate281 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.

92 internal medicine physician records list a practice address in Manhasset

They are 92 of the 2,794 NPPES records with a practice address in Manhasset, and 12,067 internal medicine physician records in New York.

Other internal medicine physician records in New York

  1. Deborah Aanonsen, D.O.Staten Island, NY1952395717
  2. Nivedita Aanur, M.D.New York, NY1982833471
  3. Jay Aaron, MDGreat Neck, NY1245332956
  4. Ahmad AbadiPoughkeepsie, NY1780258517
  5. Jamsheed Abadi, MDBrooklyn, NY1477537496
  6. Antonieta Abarientos, MDNew Rochelle, NY1649285123
  7. Zurab Abayev, M.D.Brooklyn, NY1841283058
  8. Ehab Abaza, MDNew York, NY1114507555
  9. Vaidarshi Abbagoni, MDNew York, NY1871237495
  10. Muhammad AbbasRichmond Hill, NY1053996587

Common questions

What is Janette Marcelo, M.D.'s NPI number?

Janette Marcelo, M.D.'s National Provider Identifier (NPI) is 1144337122, issued on Aug 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Janette Marcelo, M.D. located?

The NPPES record lists a practice address at 1155 Northern Blvd, Manhasset, NY, 11030. Phone: (516) 407-4000. Providers update this record themselves, so call before visiting.

How can I verify Janette Marcelo, M.D.'s license?

NPPES lists New York license number 163914, 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 Janette Marcelo, M.D. prescribe under Medicare Part D?

In 2024, Janette Marcelo, M.D. had 8,067 Medicare Part D claims for 587 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.