Registry data as of Aug 27, 2026

Karen Bleser, M.D.

Internal Medicine Physician · Schenectady, NY

Karen Bleser, M.D. is an internal medicine physician with a practice address in Schenectady, New York, and NPI 1609890805, issued on Jul 27, 2006. Check the license (New York 241705, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1609890805
Name
Karen Bleser
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
241705 NY
Self-reported in NPPES; status is on the state search
Practice location
1201 Nott St, Schenectady, NY 12308
Phone
(518) 382-7500
Enumerated
Jul 27, 2006
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 1201 Nott St

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

  1. Anne Bailey, CRNACertified Registered Nurse Anesthetist1326049958
  2. Kelly Barney, CRNACertified Registered Nurse Anesthetist1427454768
  3. Edward Bonk, CRNACertified Registered Nurse Anesthetist1649270893
  4. John Brooks, M.D.Anesthesiology Physician1306138789
  5. Shirley Chan, CRNACertified Registered Nurse Anesthetist1215646351
  6. Robert Crafts, M.D.Anesthesiology Physician1134120140

Verify Karen Bleser 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 241705
    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

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

98% fewer Medicare Part D claims than the average internal medicine physician in 2024

48 Medicare Part D claims, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Karen Bleser48
  2. Specialty average2,785

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.

46 internal medicine physician records list a Schenectady practice address

They are 46 of the 2,536 NPPES records with a Schenectady practice address, and 13,725 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. Justin Aaron, MDNew York, NY1619243912
  5. Ahmad AbadiPoughkeepsie, NY1780258517
  6. Jamsheed Abadi, MDBrooklyn, NY1477537496
  7. Theophine Abakporo, M.D.Brooklyn, NY1972564813
  8. Antonieta Abarientos, MDNew Rochelle, NY1649285123
  9. Charles Abate, MDOssining, NY1720180003
  10. Vyachislav Abayev, M.D.Brooklyn, NY1437394574

Common questions

What is Karen Bleser, M.D.'s NPI number?

Karen Bleser, M.D.'s National Provider Identifier (NPI) is 1609890805, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Karen Bleser, M.D. located?

The NPPES record lists a practice address at 1201 Nott St, Schenectady, NY, 12308. Phone: (518) 382-7500. Providers update this record themselves, so call before visiting.

How can I verify Karen Bleser, M.D.'s license?

NPPES lists New York license number 241705, 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 Karen Bleser, M.D. prescribe under Medicare Part D?

In 2024, Karen Bleser, M.D. had 48 Medicare Part D claims; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

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.