Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Greg M Kleynberg, MD

Individual provider Anesthesiology Physician · NPI 1639193154

Greg M Kleynberg, MD is an Anesthesiology in Midland, Michigan. Qualified in 1984, 42 years ago. Practices with Anesthesia Services Associates PC, a 67-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
42
Licensed in
MI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4000 Wellness Dr
Midland, MI 48670-2000
Phone: (989) 839-3606
Fax: (989) 839-1509
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 4301079713 (MI)

Record details

NPI number1639193154
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 27, 2006
Last updated in NPPESDecember 11, 2014
Mailing address4000 Wellness Dr, Midland, MI 48670-2000

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 1984 (42 years in practice)
Group practice Anesthesia Services Associates Pc — 67 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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