PORTERCARE ADVENTIST HEALTH SYSTEM
NPI 1174970313
Internal Medicine - Gastroenterology in Denver, CO

Q: What is Portercare Adventist Health System's NPI number?

The NPI number for Portercare Adventist Health System is 1174970313. It was assigned to this organization in the NPPES registry on May 18, 2016. The provider is doing business as AdventHealth Medical Group Gastroenterology at Porter. The provider is also known as CHPG SPC Metro A.

Q: What is Portercare Adventist Health System's specialty?

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

Active since May 18, 2016

2535 S DOWNING ST STE 410, DENVER, CO 80210(303) 260-2740(303) 260-2741 Get Directions Write a Review

NPPES record last updated: August 12, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 12, 2026, Sep 5, 2024, Oct 1, 2021 and 7 more (10 updates tracked since 2016).

On this page

About Portercare Adventist Health System NPPES

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

PORTERCARE ADVENTIST HEALTH SYSTEM (NPI 1174970313), doing business as Adventhealth Medical Group Gastroenterology At Porter, is a healthcare organization registered as a gastroenterology in Denver, Colorado and active in the NPI registry since May 2016. The organization lists Jason Tacha, Coo, as its authorized official.

NPPES Registry Identity

NPI1174970313

Entity TypeOrganization

Primary Taxonomy207RG0100X

Legal Business NamePORTERCARE ADVENTIST HEALTH SYSTEM

Location Address2535 S DOWNING ST STE 410Denver, CO 80210-5847

Mailing AddressPo Box 713425Chicago, IL 60677-4325 · (800) 953-0104 · Fax (303) 765-6670

Phone(303) 260-2740

Fax(303) 260-2741

Organization SubpartNo

Authorized OfficialJason TachaCoo · (303) 304-7752

Enumeration DateMay 18, 2016

Last NPPES UpdateAugust 12, 202610 updates tracked since enumeration

NPPES CertifiedAugust 12, 2026

✔ NPI 1174970313 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.

2535 S DOWNING ST STE 410, Denver, CO 80210

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Other Names 2

Doing Business AsAdventhealth Medical Group Gastroenterology At Porter

Other NameChpg Spc Metro A

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)

Portercare Adventist Health System is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

733

Medicare enrollment records show 733 clinicians reassign Medicare billing to Portercare Adventist Health System, which bills Medicare for the services they deliver. Of these, 34 practice at this address and 364 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 45

Nurse Practitioner159

Family Practice83

Internal Medicine77

Obstetrics/Gynecology69

Hospitalist47

Orthopedic Surgery36

Gastroenterology25

Mental Health Counselor20

37 other specialties217

Nearest to this location (20)

See all 733

Keith Garrison, MD

Gastroenterology

NPI 1245868637

2535 S DOWNING ST STE 410
Denver, CO 80210

(303) 260-2740

✔ PECOS✔ Accepts MedicareSame address

Ory Newman, DO

General Surgery

NPI 1184127268

2535 S DOWNING ST STE 410
Denver, CO 80210

(303) 260-2740

✔ PECOSSame address

Jennifer Rubatt, M.D.

Obstetrics/Gynecology

NPI 1831201540

2535 S DOWNING ST STE 430
Denver, CO 80210

(303) 715-2365

✔ PECOS✔ Accepts MedicareSame address

Akshay Goel, MD

Orthopedic Surgery

NPI 1659652451

2535 S DOWNING ST STE 100
Denver, CO 80210

(720) 524-1367

✔ PECOS✔ Accepts MedicareSame address

Robert Teasdall, MD

Orthopedic Surgery

NPI 1417536996

2535 S DOWNING ST STE 100
Denver, CO 80210

(720) 524-1367

✔ PECOSSame address

Matthew Stotts, M.D.

Gastroenterology

NPI 1043536717

2535 S DOWNING ST STE 380
Denver, CO 80210

(303) 778-5797

✔ PECOS✔ Accepts MedicareSame address

Zoe Che, NP

Nurse Practitioner

NPI 1336986496

2535 S DOWNING ST STE 380
Denver, CO 80210

(303) 778-5797

✔ PECOS✔ Accepts MedicareSame address

Susan Estes, FNP

Nurse Practitioner

NPI 1497842546

2535 S DOWNING ST STE 180F
Denver, CO 80210

(303) 762-0808

✔ PECOS✔ Accepts MedicareSame address

Daniel Kuehler, MD

General Surgery

NPI 1871020313

2535 S DOWNING ST STE 380
Denver, CO 80210

(303) 778-5797

✔ PECOS✔ Accepts MedicareSame address

Steven Mays, MD

Psychiatry

NPI 1528094216

2535 S DOWNING ST STE 500
Denver, CO 80210

(303) 529-1997

✔ PECOS✔ Accepts MedicareSame address

Katherine Dugan, MD

Obstetrics/Gynecology

NPI 1487035721

2535 S DOWNING ST STE 430
Denver, CO 80210

(303) 715-2365

✔ PECOS✔ Accepts MedicareSame address

Clark Kulig, MD

Internal Medicine

NPI 1669423430

2535 S DOWNING ST STE 380
Denver, CO 80210

(303) 778-5797

✔ PECOS✔ Accepts MedicareSame address

Meena Bansal, DO

Hematology/Oncology

NPI 1245765643

2535 S DOWNING ST STE 240
Denver, CO 80210

(303) 715-7030

✔ PECOS✔ Accepts MedicareSame address

Gregory Sprung, MD

Cardiovascular Disease (Cardiology)

NPI 1699018010

2535 S DOWNING ST
Denver, CO 80210

(303) 744-1065

✔ PECOS✔ Accepts MedicareSame address

Bret Clawson, MD

Hospitalist

NPI 1275093726

2525 S DOWNING ST
Denver, CO 80210

(303) 715-7184

✔ PECOS✔ Accepts MedicareSame address

David Clampitt, MD

Family Practice

NPI 1043430325

2525 S DOWNING ST
Denver, CO 80210

(303) 715-7184

✔ PECOS✔ Accepts MedicareSame address

Cory Garten, DO

Osteopathic Manipulative Medicine

NPI 1568583086

2525 S DOWNING ST
Denver, CO 80210

(303) 715-7184

✔ PECOS✔ Accepts MedicareSame address

Patrick Newman, LPC

Mental Health Counselor

NPI 1174260012

2525 S DOWNING ST
Denver, CO 80210

(303) 778-2537

✔ PECOSSame address

Jennifer Wilson, AGCNS-BC

Certified Clinical Nurse Specialist (CNS)

NPI 1225403363

2525 S DOWNING ST
Denver, CO 80210

(303) 778-1955

✔ PECOS✔ Accepts MedicareSame address

Erica Pollack, MD

Diagnostic Radiology

NPI 1497994255

2525 S DOWNING ST
Denver, CO 80210

(720) 922-6240

✔ PECOS✔ Accepts MedicareSame address

See all 733 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 Portercare Adventist Health System's NPI number?

The NPI number for Portercare Adventist Health System is 1174970313. It was assigned to this organization in the NPPES registry on May 18, 2016. The provider is doing business as AdventHealth Medical Group Gastroenterology at Porter. The provider is also known as CHPG SPC Metro A.

Where is Portercare Adventist Health System located?

Portercare Adventist Health System is located at 2535 S Downing St Ste 410, Denver, CO 80210. The listed phone number is (303) 260-2740.

What is Portercare Adventist Health System's specialty?

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

Is Portercare Adventist Health System enrolled in Medicare?

Yes. Portercare Adventist Health System is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Portercare Adventist Health System?

According to the CMS Revalidation Reassignment List (October 2026 release), 733 clinicians in 45 Medicare specialties reassign their Medicare billing to Portercare Adventist Health System. 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 Nurse Practitioner (159), Family Practice (83) and Internal Medicine (77). Of these, 34 practice at this address and 364 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 Portercare Adventist Health System was last updated on August 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.