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

Dr. Douglas A Waldo, MD

Individual provider Cardiovascular Disease Physician · NPI 1447270764

Dr. Douglas A Waldo, MD is a Cardiovascular Disease (Cardiology) in Billings, Montana. Graduated from State University of New York at Buffalo School of Medicine in 1979, 47 years ago. Practices with Rchp Billings - Missoula LLC, a 72-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
47
Trained at
State University of New York at Buffalo School of Medicine
Licensed in
TN
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

801 N 29th St
Billings, MT 59101-0905
Phone: (406) 238-2500
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1101 26th St S, Great Falls, MT 59405-5161 — (406) 731-8888

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence MD19647 (TN)

Record details

NPI number1447270764
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 20, 2006
Last updated in NPPESFebruary 28, 2022
Certification dateFebruary 28, 2022
Mailing addressPo Box 35100, Billings, MT 59107-5100

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesINTERNAL MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE
Graduated 1979 (47 years in practice)
Group practice Rchp Billings - Missoula Llc — 72 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 on file with Medicare

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