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DENVER NEPHROLOGISTS, PC
NPI 1891027637
Internal Medicine - Nephrology in Highlands Ranch, CO

Active since February 04, 2010
8671 S QUEBEC ST STE 110, HIGHLANDS RANCH, CO 80130(303) 799-8760(303) 799-8767 Get Directions Write a Review

NPPES record last updated: June 9, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 9, 2025, May 25, 2022, Oct 25, 2020 and 1 more (4 updates tracked since 2018).

About Denver Nephrologists, Pc NPPES

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

DENVER NEPHROLOGISTS, PC (NPI 1891027637), doing business as Colorado Kidney Care, is a healthcare organization registered as a nephrology in Highlands Ranch, Colorado and active in the NPI registry since February 2010. The organization lists Elizabeth Irwin, Director Operations, as its authorized official.

NPPES Registry Identity

NPI1891027637
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameDENVER NEPHROLOGISTS, PC
Location Address8671 S QUEBEC ST STE 110Highlands Ranch, CO 80130-5860
Mailing Address13901 E Exposition Ave Ste 202Aurora, CO 80012-2535 · (303) 327-4700 · Fax (303) 327-4711
Phone(303) 799-8760
Fax(303) 799-8767
Organization SubpartNo
Authorized OfficialElizabeth IrwinDirector Operations · (303) 327-4700
Enumeration DateFebruary 4, 2010
Last NPPES UpdateJune 9, 20254 updates tracked since enumeration
NPPES CertifiedJune 9, 2025
✔ NPI 1891027637 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
8671 S QUEBEC ST STE 110, Highlands Ranch, CO 80130
Open in Google Maps ↗

Other Names 1

Doing Business AsColorado Kidney Care

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE 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)

Denver Nephrologists, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

48

Medicare enrollment records show 48 clinicians reassign Medicare billing to Denver Nephrologists, PC, which bills Medicare for the services they deliver. Of these, 8 practice at this address and 18 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 3

Nephrology30
Nurse Practitioner16
Internal Medicine2

Nearest to this location (20)

See all 48
Sameer Bisarya, M.D.
Nephrology
NPI 1255379426
8671 S QUEBEC ST STE 110
Highlands Ranch, CO 80130
(303) 799-8760
✔ PECOS✔ Accepts MedicareSame address
Johanna Carey, NP
Nurse Practitioner
NPI 1700840774
8671 S QUEBEC ST STE 110
Highlands Ranch, CO 80130
(303) 799-8760
✔ PECOS✔ Accepts MedicareSame address
Laura Hope, NP
Nurse Practitioner
NPI 1629845706
8671 S QUEBEC ST STE 110
Highlands Ranch, CO 80130
(303) 799-8760
✔ PECOS✔ Accepts MedicareSame address
David Kanar, M.D.
Nephrology
NPI 1316930613
8671 S QUEBEC ST STE 110
Highlands Ranch, CO 80130
(303) 799-8760
✔ PECOS✔ Accepts MedicareSame address
Ryan Mascarenhas, MD
Nephrology
NPI 1710203682
8671 S QUEBEC ST STE 110
Highlands Ranch, CO 80130
(303) 327-4700
✔ PECOS✔ Accepts MedicareSame address
Emily Quick, NP
Nurse Practitioner
NPI 1457034704
8671 S QUEBEC ST STE 110
Highlands Ranch, CO 80130
(303) 799-8760
✔ PECOS✔ Accepts MedicareSame address
Dmitri Sychev, MD
Nephrology
NPI 1881808277
8671 S QUEBEC ST STE 110
Highlands Ranch, CO 80130
(303) 799-8760
✔ PECOS✔ Accepts MedicareSame address
Kelsey Felt
Nurse Practitioner
NPI 1821798166
8671 S QUEBEC ST STE 200
Highlands Ranch, CO 80130
(303) 805-7477
✔ PECOS✔ Accepts MedicareSame address
Jeffrey Thomas, MD
Nephrology
NPI 1851566616
950 E HARVARD AVE SUITE 240
Denver, CO 80210
(303) 871-0977
✔ PECOS✔ Accepts Medicare8.5 mi
Gregory Proctor, MD
Nephrology
NPI 1447306063
1411 S POTOMAC ST STE 200
Aurora, CO 80012
(303) 327-4700
✔ PECOS✔ Accepts Medicare9.9 mi
Marlena Hill, FNP
Nurse Practitioner
NPI 1114396231
1411 S POTOMAC ST SUITE 200
Aurora, CO 80012
(303) 755-7681
✔ PECOS✔ Accepts Medicare9.9 mi
Myriam Lallinger, M.D.
Internal Medicine
NPI 1326326414
1411 S POTOMAC ST STE 200
Aurora, CO 80012
(303) 755-7681
✔ PECOS✔ Accepts Medicare9.9 mi
Nhu Quynh Nguyen, FNP
Nurse Practitioner
NPI 1558916866
1411 S POTOMAC ST STE 200
Aurora, CO 80012
(303) 755-7681
✔ PECOS✔ Accepts Medicare9.9 mi
Ashley Pyle, M.D.
Nephrology
NPI 1013115989
1411 S POTOMAC ST STE 200
Aurora, CO 80012
(303) 755-7681
✔ PECOS✔ Accepts Medicare9.9 mi
Jitendar Rao, MD
Nephrology
NPI 1285616573
1411 S POTOMAC ST STE 200
Aurora, CO 80012
(303) 327-4700
✔ PECOS✔ Accepts Medicare9.9 mi
Paul Sakiewicz, MD
Nephrology
NPI 1710969902
1411 S POTOMAC ST STE 200
Aurora, CO 80012
(303) 327-4700
✔ PECOS✔ Accepts Medicare9.9 mi
Holly Strain, APRN
Nurse Practitioner
NPI 1104555010
1411 S POTOMAC ST STE 200
Aurora, CO 80012
(303) 327-4700
✔ PECOS✔ Accepts Medicare9.9 mi
Adolfo Villar, MD
Nephrology
NPI 1437131638
1411 S POTOMAC ST STE 360
Aurora, CO 80012
(303) 327-4700
✔ PECOS✔ Accepts Medicare9.9 mi
Kaveh Kian, MD
Nephrology
NPI 1518946011
13901 E EXPOSITION AVE STE 100
Aurora, CO 80012
(303) 327-4700
✔ PECOS✔ Accepts Medicare11 mi
Shannan Bryant, NP
Nurse Practitioner
NPI 1225635477
919 JASMINE ST
Denver, CO 80220
(303) 991-0993
✔ PECOS✔ Accepts Medicare12 mi
See all 48 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 Denver Nephrologists, PC's NPI number?

The NPI number for Denver Nephrologists, PC is 1891027637. It was assigned to this organization in the NPPES registry on February 4, 2010. The provider is doing business as Colorado Kidney Care.

Where is Denver Nephrologists, PC located?

Denver Nephrologists, PC is located at 8671 S Quebec St Ste 110, Highlands Ranch, CO 80130. The listed phone number is (303) 799-8760.

What is Denver Nephrologists, PC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Denver Nephrologists, PC enrolled in Medicare?

Yes. Denver Nephrologists, PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Denver Nephrologists, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 48 clinicians in 3 Medicare specialties reassign their Medicare billing to Denver Nephrologists, PC. 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 Nephrology (30), Nurse Practitioner (16) and Internal Medicine (2). Of these, 8 practice at this address and 18 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 Denver Nephrologists, PC was last updated on June 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.