PORTERCARE ADVENTIST HEALTH SYSTEM
NPI 1033546973
Internal Medicine - Hematology & Oncology in Denver, CO

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

The NPI number for Portercare Adventist Health System is 1033546973. It was assigned to this organization in the NPPES registry on October 10, 2013. The provider is doing business as Aah Cypress Denver, AdventHealth Hematology and Oncology Denver and Cypress Hematology and Oncology.

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

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Active since October 10, 2013

2555 S DOWNING ST, SUITE 240, DENVER, CO 80210(303) 715-7030(303) 715-7035 Get Directions Write a Review

NPPES record last updated: August 4, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 4, 2026, Sep 14, 2020, Jul 29, 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 1033546973), doing business as Aah Cypress Denver, is a healthcare organization registered as a hematology & oncology in Denver, Colorado and active in the NPI registry since October 2013. The organization lists Jason Tacha, Coo, as its authorized official.

NPPES Registry Identity

NPI1033546973

Entity TypeOrganization

Primary Taxonomy207RH0003X

Legal Business NamePORTERCARE ADVENTIST HEALTH SYSTEM

Location Address2555 S DOWNING ST, SUITE 240Denver, CO 80210-5855

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

Phone(303) 715-7030

Fax(303) 715-7035

Organization SubpartNo

Authorized OfficialJason TachaCoo · (303) 304-7752

Enumeration DateOctober 10, 2013

Last NPPES UpdateAugust 4, 20263 updates tracked since enumeration

NPPES CertifiedAugust 4, 2026

✔ NPI 1033546973 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

2555 S DOWNING ST, Denver, CO 80210

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Other Names 3

Doing Business AsAah Cypress Denver

Doing Business AsAdventhealth Hematology And Oncology Denver

Doing Business AsCypress Hematology And Oncology

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, 31 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

Mandi Beman, M.D.

Obstetrics/Gynecology

NPI 1154467793

2555 S DOWNING ST FL 1
Denver, CO 80210

(303) 316-6677

✔ PECOS✔ Accepts MedicareSame address

Susan Freeman, MD

Hematology/Oncology

NPI 1861476400

2555 S DOWNING ST STE 240
Denver, CO 80210

(303) 715-7030

✔ PECOS✔ Accepts MedicareSame address

John Kennedy, M.D.

Internal Medicine

NPI 1912095787

2555 S DOWNING ST STE 240
Denver, CO 80210

(303) 715-7030

✔ PECOS✔ Accepts MedicareSame address

Yousuf Gaffar, MD

Hematology/Oncology

NPI 1891798914

2555 S DOWNING ST STE 240
Denver, CO 80210

(303) 715-7030

✔ PECOS✔ Accepts MedicareSame address

Michelle Hintz, NP

Nurse Practitioner

NPI 1619753449

2555 S DOWNING ST STE 240
Denver, CO 80210

(303) 715-7030

✔ 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

Susanna Coiro, MD

Internal Medicine

NPI 1548236714

2525 S DOWNING ST
Denver, CO 80210

(303) 629-2100

✔ 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

Molly Gleason, APRN

Nurse Practitioner

NPI 1174980304

2525 S DOWNING ST UNIT 5N
Denver, CO 80210

(303) 715-7089

✔ PECOS✔ Accepts MedicareSame address

Karina Gonzalez, M.D.

Hospitalist

NPI 1285054015

2525 S DOWNING ST
Denver, CO 80210

(303) 715-7184

✔ PECOS✔ Accepts MedicareSame address

Jay Kutnick, MD

Psychiatry

NPI 1336295013

2525 S. DOWNING ST UNIT 1 SOUTH PORTER ADVENTIST HOSPITAL
Denver, CO 80210

(303) 778-5811

✔ 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

Benjamin Alderfer, M.D.

Psychiatry

NPI 1174620025

2525 S DOWNING ST
Denver, CO 80210

(303) 765-6858

✔ 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

Denise Thigpen, M.D.

Diagnostic Radiology

NPI 1104021401

2525 S DOWNING ST
Denver, CO 80210

(720) 922-6240

✔ 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

Shah Fahad, M.D.

Orthopedic Surgery

NPI 1245948033

2535 S DOWNING ST STE 100
Denver, CO 80210

(720) 524-1367

✔ PECOSSame 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 1033546973. It was assigned to this organization in the NPPES registry on October 10, 2013. The provider is doing business as Aah Cypress Denver, AdventHealth Hematology and Oncology Denver and Cypress Hematology and Oncology.

Where is Portercare Adventist Health System located?

Portercare Adventist Health System is located at 2555 S Downing St Suite 240, Denver, CO 80210. The listed phone number is (303) 715-7030.

What is Portercare Adventist Health System's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

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, 31 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 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.