Greg M. Kleynberg, MD
Anesthesiology Physician · Midland, MI
Greg M. Kleynberg, MD is an anesthesiology physician with a practice address in Midland, Michigan, and NPI 1639193154, issued on Jul 27, 2006. Check the license (Michigan 4301079713, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Greg M. Kleynberg
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 4301079713 MI
Self-reported in NPPES; status is on the state search - Practice location
- 4000 Wellness Dr, Midland, MI 48670
- Phone
- (989) 839-3606
- Enumerated
- Jul 27, 2006
- Record last updated
- Dec 11, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (989) 839-1509
- Medicare enrollment
- Enrolled (PECOS I20050316001044); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,720 in Michigan → Look up another NPI →
Also registered at 4000 Wellness Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Greg M. Kleynberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301079713Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Anesthesia Services Associates PCRochester, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Greg M. Kleynberg among 1,720 anesthesiology physician records in Michigan
Greg M. Kleynberg, MD is one of 1,720 anesthesiology physician records with a practice address in Michigan. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 55% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1984 · median 2006 among the 1,126 with a school on file
- Record last updated2014 · 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 207L00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in Michigan
There are 1,720 anesthesiology physician records in Michigan.
All 1,720 in Michigan → Every provider in Midland → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Andrew Baudo, M.D.Midland, MI 486701902095797
- Wayne Bedell, D.O.Midland, MI 486701558393074
- Orest Berezecky, DOMidland, MI 486701275512170
- Richard Ellison, M.D.Midland, MI 486701053336107
- Mousab EteerMidland, MI 486701003201971
- Garrett FisherMidland, MI 486701861818189
- Jayakar GuruswamyMidland, MI 486701821387267
- Adnan Hussain, MDMidland, MI 486701730591066
Common questions
What is Greg M. Kleynberg, MD's NPI number?
Greg M. Kleynberg, MD's National Provider Identifier (NPI) is 1639193154, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Greg M. Kleynberg, MD located?
The NPPES record lists a practice address at 4000 Wellness Dr, Midland, MI, 48670. Phone: (989) 839-3606. Providers update this record themselves, so call before visiting.
How can I verify Greg M. Kleynberg, MD's license?
NPPES lists Michigan license number 4301079713, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. 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. 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.