PORTERCARE ADVENTIST HEALTH SYSTEM
NPI 1245911742
Orthopaedic Surgery in Greenwood Village, CO

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

The NPI number for Portercare Adventist Health System is 1245911742. It was assigned to this organization in the NPPES registry on July 27, 2023. The provider is doing business as AdventHealth Medical Group Orthopedics at Landmark. The provider is also known as Hpol Hip Pres Ortho L.

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

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Active since July 27, 2023

5351 S ROSLYN ST STE 200, GREENWOOD VILLAGE, CO 80111(303) 679-2070(303) 679-2071 Get Directions Write a Review

NPPES record last updated: August 14, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 14, 2026, Jun 4, 2024, Jul 27, 2023 (3 updates tracked since 2023).

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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 1245911742), doing business as Adventhealth Medical Group Orthopedics At Landmark, is a healthcare organization registered as an orthopaedic surgery in Greenwood Village, Colorado and active in the NPI registry since July 2023. The organization lists Jason Tacha, Coo, as its authorized official.

NPPES Registry Identity

NPI1245911742

Entity TypeOrganization

Primary Taxonomy207X00000X

Legal Business NamePORTERCARE ADVENTIST HEALTH SYSTEM

Location Address5351 S ROSLYN ST STE 200Greenwood Village, CO 80111-2132

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

Phone(303) 679-2070

Fax(303) 679-2071

Organization SubpartNo

Authorized OfficialJason TachaCoo · (303) 304-7752

Enumeration DateJuly 27, 2023

Last NPPES UpdateAugust 14, 20263 updates tracked since enumeration

NPPES CertifiedAugust 14, 2026

✔ NPI 1245911742 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207X00000X

Definition

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

5351 S ROSLYN ST STE 200, Greenwood Village, CO 80111

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Other Names 2

Doing Business AsAdventhealth Medical Group Orthopedics At Landmark

Other NameHpol Hip Pres Ortho L

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, 5 practice at this address and 422 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

Hoang Dang, MD

Family Practice

NPI 1861920746

5351 S ROSLYN ST STE 200
Greenwood Village, CO 80111

(303) 770-6500

✔ PECOS✔ Accepts MedicareSame address

Sydney Dittman

Family Practice

NPI 1619400918

5351 S ROSLYN ST STE 200
Greenwood Village, CO 80111

(303) 770-6500

✔ PECOS✔ Accepts MedicareSame address

Sarah Mcmahon, MD

Obstetrics/Gynecology

NPI 1134756026

5351 S ROSLYN ST STE 200
Greenwood Village, CO 80111

(303) 730-8900

✔ PECOS✔ Accepts MedicareSame address

Erika Mrzlak, LSW

Clinical Social Worker

NPI 1578187837

5351 S ROSLYN ST STE 200
Greenwood Village, CO 80111

(303) 770-6500

✔ PECOS✔ Accepts MedicareSame address

Justin Quinette, DO

Sports Medicine

NPI 1043873904

5351 S ROSLYN ST STE 200
Greenwood Village, CO 80111

(303) 770-6500

✔ PECOS✔ Accepts MedicareSame address

Kimberly Collins, APN

Nurse Practitioner

NPI 1144772799

5200 DTC PKWY STE 400
Greenwood Village, CO 80111

(303) 745-0000

✔ PECOS✔ Accepts Medicare0.2 mi

Shakib Hassan, M.D.

Hospitalist

NPI 1811014673

5200 DTC PKWY SUITE 400
Greenwood Village, CO 80111

(303) 745-0000

✔ PECOS✔ Accepts Medicare0.2 mi

Daniel Mcintyre

Internal Medicine

NPI 1598968109

5200 DTC PKWY #400
Greenwood Village, CO 80111

(303) 745-0000

✔ PECOS✔ Accepts Medicare0.2 mi

Amanda Nasseh, M.D.

Hospitalist

NPI 1467616920

5200 DTC PKWY SUITE 400
Greenwood Village, CO 80111

(303) 745-0000

✔ PECOS✔ Accepts Medicare0.2 mi

Julie Plowshay, MD

Hospitalist

NPI 1285899161

5200 DTC PKWY SUITE 400
Greenwood Village, CO 80111

(303) 745-0000

✔ PECOS✔ Accepts Medicare0.2 mi

Todd Popp, M.D.

Internal Medicine

NPI 1053411884

5200 DTC PKWY SUITE 400
Greenwood Village, CO 80111

(303) 745-0000

✔ PECOS0.2 mi

Taylor Sederberg

Nurse Practitioner

NPI 1316456999

5200 DTC PKWY STE 400
Greenwood Village, CO 80111

(303) 745-0000

✔ PECOS✔ Accepts Medicare0.2 mi

Michael Taylor, D.O.

Hospitalist

NPI 1871856708

5200 DTC PKWY STE 400
Greenwood Village, CO 80111

(303) 745-0000

✔ PECOS✔ Accepts Medicare0.2 mi

Laura Popescu, M.D.

Internal Medicine

NPI 1306012240

7000 E BELLEVIEW AVE STE 209
Greenwood Village, CO 80111

(720) 482-3777

✔ PECOS✔ Accepts Medicare0.3 mi

William Choi, MD

Neurosurgery

NPI 1093811028

8200 E BELLEVIEW AVE STE 400E
Greenwood Village, CO 80111

(303) 790-2225

✔ PECOS✔ Accepts Medicare0.5 mi

Xavier Glover, MD

Urology

NPI 1235691940

8200 E BELLEVIEW AVE STE 270E
Greenwood Village, CO 80111

(303) 649-3710

✔ PECOS✔ Accepts Medicare0.5 mi

Shandra Wilson, MD

Urology

NPI 1275557043

8200 E BELLEVIEW AVE STE 100E
Greenwood Village, CO 80111

(303) 649-3710

✔ PECOS✔ Accepts Medicare0.5 mi

Brooke Paz, MSN

Nurse Practitioner

NPI 1477220119

5570 DTC PKWY STE 200
Greenwood Village, CO 80111

(303) 770-6500

✔ PECOS✔ Accepts Medicare0.5 mi

Gary Ghiselli, M.D.

Orthopedic Surgery

NPI 1124011606

7800 E ORCHARD RD SUITE 100
Greenwood Village, CO 80111

(303) 783-1300

✔ PECOS✔ Accepts Medicare0.8 mi

David Wong, M.D.

Orthopedic Surgery

NPI 1508859083

7800 E ORCHARD RD SUITE 100
Greenwood Village, CO 80111

(303) 697-7463

✔ PECOS✔ Accepts Medicare0.8 mi

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 1245911742. It was assigned to this organization in the NPPES registry on July 27, 2023. The provider is doing business as AdventHealth Medical Group Orthopedics at Landmark. The provider is also known as Hpol Hip Pres Ortho L.

Where is Portercare Adventist Health System located?

Portercare Adventist Health System is located at 5351 S Roslyn St Ste 200, Greenwood Village, CO 80111. The listed phone number is (303) 679-2070.

What is Portercare Adventist Health System's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

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, 5 practice at this address and 422 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 14, 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.