Colleen Klos
Internal Medicine Physician · Williamsville, NY
Colleen Klos is an internal medicine physician with a practice address in Williamsville, New York, and NPI 1003567603, issued on Jan 14, 2022. Check the license (New York 027835-01, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Colleen Klos
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 027835-01 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1540 Maple RD, Williamsville, NY 14221
- Phone
- (716) 568-3514
- Enumerated
- Jan 14, 2022
- Record last updated
- Jan 14, 2022
- Medicare enrollment
- Enrolled (PECOS I20220405002860); accepts Medicare assignment
- Medical or professional school
- University Of Pittsburgh School Of Medicine, 2021
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 1540 Maple RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Aaron Adams, MDEmergency Medicine Physician1962068080
- Raheel Ahmad, DOHospitalist Physician1316180896
- Mohammed Ahmed, MDInternal Medicine Physician1639818321
- Andrew Bair, PAPhysician Assistant1720589872
- Nancy Barclay, NPNeonatal Nurse Practitioner1154398550
Verify Colleen Klos 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 027835-01Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
50 Medicare Part D claims for 29 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $48.23
2 payments; by number, the most common kind was food and beverage; the largest payer was Solventum Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Erie County Medical Center CorporationBuffalo, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Colleen Klos among 12,067 internal medicine physician records in New York
Colleen Klos is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 94% of them.
- NPI issued2022 · 94% of these records are older, 4% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2021 · median 2002 among the 7,221 with a school on file
- Record last updated2022 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
64 internal medicine physician records list a practice address in Williamsville
They are 64 of the 3,530 NPPES records with a practice address in Williamsville, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Williamsville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- George Burnett, MDWilliamsville, NY 142211679559934
- Jeffrey Burnett, DOWilliamsville, NY 142211346226271
- Lynn Cieslak, M.D.Williamsville, NY 142211518951011
- Peter Elkin, M.D.Williamsville, NY 142211568432656
- Shuman Hua, M.D.Williamsville, NY 142211245219229
- Bonnie McMichael, M.D.Williamsville, NY 142211881692267
- Larisa Meras, M.D.Buffalo, NY 142211962474262
- Margaret Mitchell, M.D.Williamsville, NY 142211477551331
Common questions
What is Colleen Klos's NPI number?
Colleen Klos's National Provider Identifier (NPI) is 1003567603, issued on Jan 14, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Colleen Klos located?
The NPPES record lists a practice address at 1540 Maple RD, Williamsville, NY, 14221. Phone: (716) 568-3514. Providers update this record themselves, so call before visiting.
How can I verify Colleen Klos's license?
NPPES lists New York license number 027835-01, 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 Colleen Klos prescribe under Medicare Part D?
In 2024, Colleen Klos had 50 Medicare Part D claims for 29 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.