Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

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: August 30, 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

Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. KATHEY RANEA SPENCE PA PHYSICIAN ASSISTA

Physician Assistant

2555 S DOWNING ST, #130
DENVER, CO 80210

Denver County (303) 777-7112

BLAIR KATELYN WERNICK NP

Nurse Practitioner (Obstetrics & Gynecology)

2555 S DOWNING ST
DENVER, CO 80210

Denver County (303) 316-6677

TOXICOLOGY ASSOCIATES PROF LLC

Specialist

2555 S DOWNING ST, SUITE 260
DENVER, CO 80210

Denver County (303) 765-3800

DR. RYAN ANDREW GAINES MD

Otolaryngology (Plastic Surgery within the Head & Neck)

2555 S DOWNING ST, SUITE #100
DENVER, CO 80210

Denver County (303) 778-5658

NADINE GEORGE MIKHAEEL-KAMEL M.D.

Internal Medicine (Hematology & Oncology)

2555 S DOWNING ST, SUITE 100
DENVER, CO 80210

Denver County (303) 282-7878

WILLIAM JOSEPH BOROUGHF D.O.

Emergency Medicine

2555 S DOWNING ST, SUITE 260
DENVER, CO 80210

Denver County (303) 765-3800

WOUND CARE & HYPERBARIC MEDICINE ASSOCIATES, LLC

Emergency Medicine (Undersea and Hyperbaric Medicine)

2555 S DOWNING ST, SUITE 260
DENVER, CO 80210

Denver County (303) 765-3800

SETH D REINER M.D.

Radiology (Radiation Oncology)

2555 S DOWNING ST
DENVER, CO 80210

Denver County (303) 778-5714

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.

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 29 days 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.