NPPES file of Aug 9, 2026

Charles S. Schaeffer, M.D.

Rheumatology Physician · Cooperstown, NY

Charles S. Schaeffer, M.D. is a rheumatology physician with a practice address in Cooperstown, New York, and NPI 1568428944, issued on Apr 25, 2006. Check the license (New York 164193, as entered in NPPES) 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1568428944
Name
Charles S. Schaeffer
Credential
M.D.
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
164193 NY
Self-reported in NPPES; status is on the state search
Practice location
1 Atwell RD, Cooperstown, NY 13326
Phone
(607) 547-3284
Enumerated
Apr 25, 2006
Record last updated
Jul 29, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(607) 547-6684
Medicaid ID
01792401 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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8 nearest rheumatology physician records → All 599 in New York → Look up another NPI →

Also registered at 1 Atwell RD

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

  1. Fady AbdelmalekPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1124750682
  2. Mohamud Abdi, MDStudent in an Organized Health Care Education/Training Program1164225678
  3. Liana Abduova, MDStudent in an Organized Health Care Education/Training Program1770474017
  4. Dawn Abounader Chase, RDRegistered Dietitian1356584122
  5. Gayle Abramson, M.D.Diagnostic Radiology Physician1578676680
  6. Rami Abu Sbeit, M.D.Ophthalmology Physician1558056531

Verify Charles S. Schaeffer 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 164193    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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Charles S. Schaeffer among 599 rheumatology physician records in New York

Charles S. Schaeffer, M.D. is one of 599 rheumatology physician records with a practice address in New York. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileNo · 85% of these records are
  • In the CMS Doctors and Clinicians fileNo · 71% of these records are
  • Record last updated2008 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in New York

There are 599 rheumatology physician records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 599 in New York → Every provider in Cooperstown → Rheumatology Physician nationwide →

The 8 rheumatology physician records with the nearest ZIP codes

  1. David Griger, D.O.Cooperstown, NY 133261063478543
  2. Gerald Groff, M.D.Cooperstown, NY 133261053378950
  3. Linet Martirossian, MDCooperstown, NY 133261346681038
  4. Donald Raddatz, M.D.Cooperstown, NY 133261033175963
  5. Ute Dreiner, M.D.New Hartford, NY 134131114914421
  6. Martin Morell, MDNew Hartford, NY 134131811990997
  7. Allan Smiley, M.D.New Hartford, NY 134131649264862
  8. Mary Abdulky, MDSyracuse, NY 132141821060153

Common questions

What is Charles S. Schaeffer, M.D.'s NPI number?

Charles S. Schaeffer, M.D.'s National Provider Identifier (NPI) is 1568428944, issued on Apr 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Charles S. Schaeffer, M.D. located?

The NPPES record lists a practice address at 1 Atwell RD, Cooperstown, NY, 13326. Phone: (607) 547-3284. Providers update this record themselves, so call before visiting.

How can I verify Charles S. Schaeffer, M.D.'s license?

NPPES lists New York license number 164193, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.