Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Gregory B. Tirdel, MD

Individual provider Internal Medicine Physician · NPI 1821080144

Dr. Gregory B. Tirdel, MD is registered under Pulmonary Disease in Truckee, California. Graduated from Hahnemann University College of Medicine in 1989, 37 years ago. Practices with Tahoe Forest Hospital District, a 142-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
37
Trained at
Hahnemann University College of Medicine
Licensed in
CA
In the registry since
2005
Specialties on file
3
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

10956 Donner Pass Rd Ste 260
Truckee, CA 96161-4861 Not confirmed with CMS for 14 years — call before visiting
Phone: (530) 582-6400
Fax: (530) 582-6991
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G69661 (CA)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence G69661 (CA)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence G696610 (CA)

Record details

NPI number1821080144
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 22, 2005
Last updated in NPPESFebruary 17, 2012

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Medical schoolHAHNEMANN UNIVERSITY COLLEGE OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Tahoe Forest Hospital District — 142 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients145
Services billed 171 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Plumas District Hospital Hospital · Quincy, CA
  • Tahoe Forest Hospital Hospital · Truckee, CA · listed as Tahoe Forest Hospital District
  • Barton Memorial Hospital Hospital · South Lake Tahoe, CA
  • Eastern Plumas Hospital - Portola Campus Hospital · Portola, CA
  • Incline Village Community Hospital Hospital · Incline Village, NV

Colleagues at Tahoe Forest Hospital District

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 142 clinicians in the practice; 12 are shown here.

Other providers in Truckee