Henry Klos, MD
Gastroenterology Physician · Buffalo, NY
Henry Klos, MD is a gastroenterology physician with a practice address in Buffalo, New York, and NPI 1649899956, issued on Apr 16, 2020. Check the license (New York 343169, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Henry Klos
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 343169 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1091 Main St Ste 301, Buffalo, NY 14209
- Phone
- (716) 626-2644
- Enumerated
- Apr 16, 2020
- Record last updated
- Jul 17, 2026
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Also registered at 1091 Main St Ste 301
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maritza Baez, MDFamily Medicine Physician1285849877
- Chelsea Ballard, NPAdult Health Nurse Practitioner1861196677
- Maria Brzozowski, MDObstetrics & Gynecology Physician1548849169
- April Kane Ayoub, AGNPAdult Health Nurse Practitioner1881468957
- Alia MannFamily Nurse Practitioner1720744873
- Teagan Shanahan, PAMedical Physician Assistant1144156076
Verify Henry 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 343169Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average gastroenterology physician in 2024
178 Medicare Part D claims for 33 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium30 claims
- Levothyroxine Sodium21 claims
- Gabapentin18 claims
- Alendronate Sodium16 claims
- Easy Touch Alcohol Prep Pads11 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.
Henry Klos among 1,797 gastroenterology physician records in New York
Henry Klos, MD is one of 1,797 gastroenterology physician records with a practice address in New York. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 98% of them.
- NPI issued2020 · 98% of these records are older, 2% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileNo · 77% of these records are
- Record last updated2026 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in New York
There are 1,797 gastroenterology physician records in New York.
All 1,797 in New York → Every provider in Buffalo → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Aston Williams, MDBuffalo, NY 142141558423921
- Paula Burkard, MDBuffalo, NY 142151972551463
- Michael Farrell, MDBuffalo, NY 142031447719380
- Erin Ly, M.D.Buffalo, NY 142151740638725
- Thomas Mahl, MDBuffalo, NY 142151780633412
- Jehad Miqdadi, M.D.Buffalo, NY 142031396724357
- Jan Novak, MDBuffalo, NY 142151427096239
- Navpreet Rana, DOBuffalo, NY 142151922535210
Common questions
What is Henry Klos, MD's NPI number?
Henry Klos, MD's National Provider Identifier (NPI) is 1649899956, issued on Apr 16, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Henry Klos, MD located?
The NPPES record lists a practice address at 1091 Main St Ste 301, Buffalo, NY, 14209. Phone: (716) 626-2644. Providers update this record themselves, so call before visiting.
How can I verify Henry Klos, MD's license?
NPPES lists New York license number 343169, 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 Henry Klos, MD prescribe under Medicare Part D?
In 2024, Henry Klos, MD had 178 Medicare Part D claims for 33 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.