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

Dr. Tamas Otrok, MD

Individual provider Gastroenterology Physician · NPI 1851386734

Dr. Tamas Otrok, MD is a Gastroenterology in Longmont, Colorado. Qualified in 1993, 33 years ago. Practices with Boulder Valley Gastroenterology Inc, a 33-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
33
Licensed in
CO
In the registry since
2005
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

1551 Professional Ln Unit 290
Longmont, CO 80501-6970
Phone: (303) 604-5000
Fax: (720) 890-0364
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence DR.0055835 (CO)

Record details

NPI number1851386734
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 15, 2005
Last updated in NPPESMarch 6, 2026
Certification dateMarch 6, 2026
Mailing address382 S Arthur Ave, Louisville, CO 80027-3094

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Boulder Valley Gastroenterology Inc. — 33 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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