1. Home
  2. Directory
  3. Colorado
  4. Denver
  5. Hospitalist
  6. NPI Profile

COLORADO HOSPITALIST SERVICES, PLLC
NPI 1669115747
Hospitalist in Denver, CO

Active since April 18, 2022
4567 E 9TH AVE, DENVER, CO 80220(303) 320-2121(303) 320-2200 Get Directions Write a Review

NPPES record last updated: October 29, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Colorado Hospitalist Services, Pllc NPPES

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

COLORADO HOSPITALIST SERVICES, PLLC (NPI 1669115747) is a healthcare organization registered as a hospitalist in Denver, Colorado and active in the NPI registry since April 2022. The organization lists Brian Dawson, President/owner, as its authorized official.

NPPES Registry Identity

NPI1669115747
Entity TypeOrganization
Primary Taxonomy208M00000X
Legal Business NameCOLORADO HOSPITALIST SERVICES, PLLC
Location Address4567 E 9TH AVEDenver, CO 80220-3908
Mailing Address200 Corporate BlvdLafayette, LA 70508-3870 · (800) 893-9698
Phone(303) 320-2121
Fax(303) 320-2200
Organization SubpartNo
Authorized OfficialBrian DawsonPresident/owner · (337) 609-1221
Enumeration DateApril 18, 2022
Last NPPES UpdateOctober 29, 2025
NPPES CertifiedOctober 29, 2025
✔ NPI 1669115747 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedPhysician AssistantTaxonomy 363A00000X
Also ListedNurse PractitionerTaxonomy 363L00000X
4567 E 9TH AVE, Denver, CO 80220
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Colorado Hospitalist Services, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

180

Medicare enrollment records show 180 clinicians reassign Medicare billing to Colorado Hospitalist Services, PLLC, which bills Medicare for the services they deliver. Of these, 44 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 7

Internal Medicine94
Hospitalist40
Nurse Practitioner26
Family Practice17
Cardiovascular Disease (Cardiology)1
Emergency Medicine1
Osteopathic Manipulative Medicine1

Nearest to this location (20)

See all 180
Brenton Mccoy, D.O.
Family Practice
NPI 1821388901
4567 E 9TH AVE
Denver, CO 80220
(303) 320-2660
✔ PECOS✔ Accepts Medicare0.1 mi
Matthew Reisinger, M.D.
Internal Medicine
NPI 1629311345
4567 E 9TH AVE
Denver, CO 80220
(303) 320-2121
✔ PECOS✔ Accepts Medicare0.1 mi
Emily Saluke, M.D.
Internal Medicine
NPI 1336414788
4567 E 9TH AVE
Denver, CO 80220
(303) 320-2121
✔ PECOS✔ Accepts Medicare0.1 mi
Amy Silverberg, MD
Internal Medicine
NPI 1801038468
1400 JACKSON ST NATIONAL JEWISH HEALTH
Denver, CO 80206
(303) 388-4461
✔ PECOS✔ Accepts Medicare0.6 mi
Andreas Mykoniatis, MD
Hospitalist
NPI 1679784979
1719 E 19TH AVE IM HOSPITALIST
Denver, CO 80218
(720) 754-2296
✔ PECOS✔ Accepts Medicare2.0 mi
Daniela Grayeb, MD
Hospitalist
NPI 1700852886
1375 E 20TH AVE
Denver, CO 80205
(303) 338-4545
✔ PECOS✔ Accepts Medicare2.2 mi
David Hager, MD
Internal Medicine
NPI 1790858579
835 E 18TH AVE STE 110
Denver, CO 80218
(303) 825-4646
✔ PECOS2.4 mi
Emily Marsh
Internal Medicine
NPI 1851493613
4100 E MISSISSIPPI AVE STE 110
Glendale, CO 80246
(303) 552-9522
✔ PECOS2.5 mi
Zachary Brown, D.O.
Internal Medicine
NPI 1609224575
777 BANNOCK ST
Denver, CO 80204
(303) 436-4949
✔ PECOS✔ Accepts Medicare3.0 mi
Dennis Gibson, MD
Internal Medicine
NPI 1144455247
777 BANNOCK ST
Denver, CO 80204
(303) 436-4949
✔ PECOS✔ Accepts Medicare3.0 mi
Regan Hansen, NP-C
Nurse Practitioner
NPI 1316467897
777 BANNOCK ST
Denver, CO 80204
(303) 436-6000
✔ PECOS3.0 mi
Sonjay Shrinivas, DO
Internal Medicine
NPI 1326070855
600 17TH ST. SUITE 2883
Denver, CO 80202
(303) 493-9509
✔ PECOS3.1 mi
Leah Puckett, M.D.
Internal Medicine
NPI 1508156969
723 DELAWARE ST
Denver, CO 80204
(303) 724-6031
✔ PECOS✔ Accepts Medicare3.2 mi
Blessed Barrack, NP
Nurse Practitioner
NPI 1104435668
12605 E 16TH AVE
Aurora, CO 80045
(720) 848-0000
✔ PECOS✔ Accepts Medicare5.0 mi
Michael Dumpert, NP
Nurse Practitioner
NPI 1285945964
12605 E 16TH AVE
Aurora, CO 80045
(720) 848-0000
✔ PECOS✔ Accepts Medicare5.0 mi
Alpeshkumar Patel, MD
Hospitalist
NPI 1922204791
12605 E 16TH AVE
Aurora, CO 80045
(720) 848-0000
✔ PECOS✔ Accepts Medicare5.0 mi
Philip Simonian, MD
Hospitalist
NPI 1992773063
12605 E 16TH AVE
Aurora, CO 80045
(720) 848-0000
✔ PECOS✔ Accepts Medicare5.0 mi
Piotr Tabaczewski, MD
Hospitalist
NPI 1568657450
12605 E 16TH AVE
Aurora, CO 80045
(720) 848-0000
✔ PECOS✔ Accepts Medicare5.0 mi
Melanie Metcalf, MD
Family Practice
NPI 1376557959
1635 AURORA CT
Aurora, CO 80045
(720) 848-0000
✔ PECOS✔ Accepts Medicare5.1 mi
Anna Pazurek
Hospitalist
NPI 1396030425
13001 E 17TH PL
Aurora, CO 80045
(303) 788-3150
✔ PECOS✔ Accepts Medicare5.3 mi
See all 180 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 Colorado Hospitalist Services, PLLC's NPI number?

The NPI number for Colorado Hospitalist Services, PLLC is 1669115747. It was assigned to this organization in the NPPES registry on April 18, 2022.

Where is Colorado Hospitalist Services, PLLC located?

Colorado Hospitalist Services, PLLC is located at 4567 E 9th Ave, Denver, CO 80220. The listed phone number is (303) 320-2121.

What is Colorado Hospitalist Services, PLLC's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Colorado Hospitalist Services, PLLC enrolled in Medicare?

Yes. Colorado Hospitalist Services, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Colorado Hospitalist Services, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 180 clinicians in 7 Medicare specialties reassign their Medicare billing to Colorado Hospitalist Services, PLLC. 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 Internal Medicine (94), Hospitalist (40) and Nurse Practitioner (26). Of these, 44 practice 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 Colorado Hospitalist Services, PLLC was last updated on October 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.