BOULDER VALLEY GASTROENTEROLOGY INC.
NPI 1720674955
Internal Medicine - Gastroenterology in Boulder, CO

Active since December 11, 2020
1755 48TH ST STE 100, BOULDER, CO 80301(303) 604-5000 Get Directions Write a Review

NPPES record last updated: December 11, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Boulder Valley Gastroenterology Inc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BOULDER VALLEY GASTROENTEROLOGY INC. (NPI 1720674955), doing business as Gastroenterology Of The Rockies, is a healthcare organization registered as a gastroenterology in Boulder, Colorado and active in the NPI registry since December 2020. The organization lists Daus Mahnke, Md, as its authorized official.

NPPES Registry Identity

NPI1720674955
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameBOULDER VALLEY GASTROENTEROLOGY INC.
Location Address1755 48TH ST STE 100Boulder, CO 80301-2712
Mailing Address382 S Arthur AveLouisville, CO 80027-3094 · (303) 604-5000
Organization SubpartYes
Authorized OfficialDaus MahnkeMd · (303) 604-5000
Enumeration DateDecember 11, 2020
NPPES CertifiedDecember 11, 2020
✔ NPI 1720674955 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
1755 48TH ST STE 100, Boulder, CO 80301

Other Names 1

Doing Business AsGastroenterology Of The Rockies

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Boulder Valley Gastroenterology Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by February 28, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateColoradoEnrollment IDO20040130001035Non-DME Part B · Clinic/Group PracticeDue dateFebruary 28, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

57

Medicare enrollment records show 57 clinicians reassign Medicare billing to Boulder Valley Gastroenterology Inc., which bills Medicare for the services they deliver. Of these, 5 practice at this address and 16 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 4

Certified Registered Nurse Anesthetist (CRNA)29
Gastroenterology20
Internal Medicine5
Pathology3

Nearest to this location (20)

See all 57
Certified Registered Nurse Anesthetist (CRNA)
NPI 1427430032
1755 48TH ST STE 100
Boulder, CO 80301
(303) 604-5000
✔ PECOSSame address
Gastroenterology
NPI 1851310478
1755 48TH ST SUITE 100
Boulder, CO 80301
(303) 604-5000
✔ PECOSSame address
Gastroenterology
NPI 1114946639
1755 48TH ST SUITE 100
Boulder, CO 80301
(303) 604-5000
✔ PECOSSame address
Gastroenterology
NPI 1447343843
1755 48TH ST STE 100
Boulder, CO 80301
(303) 604-5000
✔ PECOSSame address
Gastroenterology
NPI 1952793846
1755 48TH ST STE 100
Boulder, CO 80301
(303) 604-5000
✔ PECOS✔ Accepts MedicareSame address
Gastroenterology
NPI 1093927055
2750 BROADWAY ST
Boulder, CO 80304
(303) 440-3216
✔ PECOS2.5 mi
Certified Registered Nurse Anesthetist (CRNA)
NPI 1831532068
1000 W SOUTH BOULDER RD
Lafayette, CO 80026
(303) 604-5000
✔ PECOS✔ Accepts Medicare5.9 mi
Gastroenterology
NPI 1275755290
1000 W SOUTH BOULDER RD
Lafayette, CO 80026
(303) 604-5000
✔ PECOS✔ Accepts Medicare6.6 mi
Internal Medicine
NPI 1720615354
1000 W SOUTH BOULDER RD
Lafayette, CO 80026
(303) 604-5000
✔ PECOS6.6 mi
Internal Medicine
NPI 1225599418
1000 W SOUTH BOULDER RD
Lafayette, CO 80026
(303) 604-5000
✔ PECOS✔ Accepts Medicare6.6 mi
Pathology
NPI 1992917678
382 S ARTHUR AVE
Louisville, CO 80027
(303) 604-5000
✔ PECOS✔ Accepts Medicare6.9 mi
Certified Registered Nurse Anesthetist (CRNA)
NPI 1114388873
382 S ARTHUR AVE
Louisville, CO 80027
(303) 604-5000
✔ PECOS✔ Accepts Medicare6.9 mi
Certified Registered Nurse Anesthetist (CRNA)
NPI 1679711758
1000 W SOUTH BOULDER RD
Lafayette, CO 80026
(303) 604-5000
✔ PECOS✔ Accepts Medicare9.0 mi
Gastroenterology
NPI 1306878566
1000 W SOUTH BOULDER RD SUITE 200
Lafayette, CO 80026
(303) 604-5000
✔ PECOS✔ Accepts Medicare9.0 mi
Gastroenterology
NPI 1275732984
1000 W SOUTH BOULDER RD
Lafayette, CO 80026
(303) 604-5000
✔ PECOS✔ Accepts Medicare9.0 mi
Gastroenterology
NPI 1396891974
1000 W SOUTH BOULDER RD STE 200
Lafayette, CO 80026
(720) 932-7719
✔ PECOS✔ Accepts Medicare9.0 mi
Internal Medicine
NPI 1447678271
1551 PROFESSIONAL LN UNIT 290
Longmont, CO 80501
(303) 604-5000
✔ PECOS✔ Accepts Medicare11 mi
Gastroenterology
NPI 1851386734
1551 PROFESSIONAL LN UNIT 290
Longmont, CO 80501
(303) 604-5000
✔ PECOS✔ Accepts Medicare11 mi
Certified Registered Nurse Anesthetist (CRNA)
NPI 1265799837
1551 PROFESSIONAL LN UNIT 290
Longmont, CO 80501
(303) 604-5000
✔ PECOS✔ Accepts Medicare11 mi
Pathology
NPI 1548527385
13952 DENVER WEST PKWY STE 100
Lakewood, CO 80401
(303) 604-5000
✔ PECOS✔ Accepts Medicare19 mi
See all 57 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Boulder Valley Gastroenterology Inc.'s NPI number?

The NPI number for Boulder Valley Gastroenterology Inc. is 1720674955. It was assigned to this organization in the NPPES registry on December 11, 2020. The provider is doing business as Gastroenterology Of The Rockies.

Where is Boulder Valley Gastroenterology Inc. located?

Boulder Valley Gastroenterology Inc. is located at 1755 48th St Ste 100, Boulder, CO 80301. The listed phone number is (303) 604-5000.

What is Boulder Valley Gastroenterology Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Boulder Valley Gastroenterology Inc. enrolled in Medicare?

Yes. Boulder Valley Gastroenterology Inc. is registered in the Medicare PECOS enrollment system.

When is Boulder Valley Gastroenterology Inc.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Colorado, Clinic/Group Practice) is due for revalidation by February 28, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Boulder Valley Gastroenterology Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 57 clinicians in 4 Medicare specialties reassign their Medicare billing to Boulder Valley Gastroenterology Inc.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Certified Registered Nurse Anesthetist (CRNA) (29), Gastroenterology (20) and Internal Medicine (5). Of these, 5 practice at this address and 16 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Boulder Valley Gastroenterology Inc. was last updated on December 11, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.