PORTERCARE ADVENTIST HEALTH SYSTEM
NPI 1174132690
Orthopaedic Surgery - Orthopaedic Surgery of the Spine in Denver, CO

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

The NPI number for Portercare Adventist Health System is 1174132690. It was assigned to this organization in the NPPES registry on July 30, 2020. The provider is doing business as Colorado Comprehensive Spine Institute.

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

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Orthopaedic Surgery of the Spine, with taxonomy code 207XS0117X.

Active since July 30, 2020

2535 S DOWNING ST STE 180F, DENVER, CO 80210(303) 762-0808(303) 762-9292 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 3, 2020, Jul 30, 2020 (3 updates tracked since 2020).

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About Portercare Adventist Health System NPPES

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

PORTERCARE ADVENTIST HEALTH SYSTEM (NPI 1174132690), doing business as Colorado Comprehensive Spine Institute, is a healthcare organization registered as an orthopaedic surgery of the spine in Denver, Colorado and active in the NPI registry since July 2020. The organization lists Jason Tacha, Coo, as its authorized official.

NPPES Registry Identity

NPI1174132690

Entity TypeOrganization

Primary Taxonomy207XS0117X

Legal Business NamePORTERCARE ADVENTIST HEALTH SYSTEM

Location Address2535 S DOWNING ST STE 180FDenver, CO 80210-5847

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

Phone(303) 762-0808

Fax(303) 762-9292

Organization SubpartNo

Authorized OfficialJason TachaCoo · (303) 304-7752

Enumeration DateJuly 30, 2020

Last NPPES UpdateAugust 12, 20263 updates tracked since enumeration

NPPES CertifiedAugust 12, 2026

✔ NPI 1174132690 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic Surgery · Orthopaedic Surgery of the SpineAllopathic & Osteopathic Physicians

Taxonomy Code207XS0117X

Definition

Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic surgeons of the spine deal with the evaluation and nonoperative and operative treatment of the full spectrum of primary spinal disorders including trauma, degenerative, deformity, tumor, and reconstructive.

2535 S DOWNING ST STE 180F, Denver, CO 80210

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Other Names 1

Doing Business AsColorado Comprehensive Spine Institute

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

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

Jason Jennings, M.D

Orthopedic Surgery

NPI 1679716633

2535 S DOWNING ST STE 100
Denver, CO 80210

(720) 524-1367

✔ 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

Nicole Mccormick, NP

Nurse Practitioner

NPI 1326420316

2535 S DOWNING ST STE 380
Denver, CO 80210

(303) 778-5797

✔ PECOS✔ Accepts MedicareSame address

Alexandra Meihofer, APN

Nurse Practitioner

NPI 1942965934

2535 S DOWNING ST STE 380
Denver, CO 80210

(303) 778-5797

✔ PECOS✔ Accepts MedicareSame address

Hunter Moore, MD

General Surgery

NPI 1144519935

2535 S DOWNING ST STE 380
Denver, CO 80210

(303) 778-5797

✔ PECOS✔ Accepts MedicareSame address

Matthew Stotts, M.D.

Gastroenterology

NPI 1043536717

2535 S DOWNING ST STE 380
Denver, CO 80210

(303) 778-5797

✔ 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

Joseph Assini, MD

Orthopedic Surgery

NPI 1841538832

2535 S DOWNING ST STE 100
Denver, CO 80210

(720) 524-1367

✔ 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

Massimo Asolati, MD

General Surgery

NPI 1922060185

2535 S DOWNING ST STE 380
Denver, CO 80210

(303) 778-5797

✔ 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

Jennifer Rubatt, M.D.

Obstetrics/Gynecology

NPI 1831201540

2535 S DOWNING ST STE 430
Denver, CO 80210

(303) 715-2365

✔ PECOS✔ Accepts MedicareSame address

Keith Garrison, MD

Gastroenterology

NPI 1245868637

2535 S DOWNING ST STE 410
Denver, CO 80210

(303) 260-2740

✔ 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

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 1174132690. It was assigned to this organization in the NPPES registry on July 30, 2020. The provider is doing business as Colorado Comprehensive Spine Institute.

Where is Portercare Adventist Health System located?

Portercare Adventist Health System is located at 2535 S Downing St Ste 180F, Denver, CO 80210. The listed phone number is (303) 762-0808.

What is Portercare Adventist Health System's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Orthopaedic Surgery of the Spine, with taxonomy code 207XS0117X.

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.