Updated October 2026

Largest primary care groups in Colorado

Medical group directory
Colorado
Primary care

Groups: 575
Family Medicine groups: 200
Nurse Practitioner groups: 183
Family physicians: 1,193
Nurse practitioner specialists: 636

There are 575 primary care groups in Colorado with a Medicare PAC ID: 200 family medicine, 183 nurse practitioner, 149 internal medicine, 37 physician assistant and 5 general practice. Cardiac & Thoracic Surgery Associates (CTSA) is the largest family medicine group, with 185 family physicians, and The Little Clinic the largest nurse practitioner group, with 171 nurse practitioner specialists.

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University of Colorado Medicine (CU Medicine) is the largest primary care group in Colorado, with 2,852 physicians

Ranked by physicians with a Colorado address linked to each group. UCHealth Medical Group is second with 1,389, and Colorado Permanente Medical Group third with 1,273. 15 Colorado groups have 100 or more physicians.

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Primary care groups in Colorado, ranked by physicians, 51 to 100
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
51	Good Samaritan HospitalLafayette · 3 sites	Parent on file	33	35	Decision makers
52	Colorado Kidney CareAurora · 9 sites	-	32	49	Decision makers
53	Rocky Mountain GastroenterologyLakewood · 12 sites	-	31	64	Decision makers
54	South Denver GastroenterologyLone Tree · 4 sites	-	31	53	Decision makers
55	Banner Family Medicine BrushBrush · 2 sites	Parent on file	31	47	Decision makers
56	Rio Grande HospitalDel Norte · 8 sites	Parent on file	30	49	Decision makers
57	Family Physicians of GreeleyGreeley · 4 sites	-	30	40	Decision makers
58	Colorado Springs CardiologyColorado Springs · 9 sites	Parent on file	28	49	Decision makers
59	Montrose Regional HealthMontrose · 14 sites	Parent on file	27	45	Decision makers
60	Arkansas Valley Regional Medical CenterLa Junta · 4 sites	Parent on file	25	40	Decision makers
61	AFC Urgent Care Denver Cherry CreekDenver · 11 sites	Parent on file	24	90	Decision makers
62	Aurora Denver Cardiology AssociatesAurora · 27 sites	Parent on file	24	50	Decision makers
63	Yuma Hospital & ClinicsYuma · 5 sites	Parent on file	24	44	Decision makers
64	Aspen Valley HealthAspen · 3 sites	Parent on file	23	36	Decision makers
65	Cedar Point HealthMontrose · 14 sites	-	22	71	Decision makers
66	MedNOW ClinicsAurora · 16 sites	Parent on file	22	66	Decision makers
67	Colorado Physician PartnersLakewood · 10 sites	Parent on file	22	41	Decision makers
68	Rocky Mountain Primary CareWestminster · 4 sites	Parent on file	22	40	Decision makers
69	STRIDE Community Health CenterWheatridge · 13 sites	Parent on file	21	134	Decision makers
70	Healogics Specialty Physicians of Colorado, LLCParker · 10 sites	Parent on file	20	36	Decision makers
71	Colorado Heart & VascularGolden · 6 sites	-	19	34	Decision makers
72	Sunrise Community HealthEvans · 12 sites	Parent on file	18	73	Decision makers
73	FirstDocDenver · 5 sites	Parent on file	18	45	Decision makers
74	Rocky Vista Health CenterParker · 4 sites	Parent on file	18	20	Decision makers
75	Long Term Care & Rehab ConsultantsArvada · 9 sites	Parent on file	17	83	Decision makers
76	Keefe Memorial HospitalCheyenne Wells · 4 sites	Parent on file	17	31	Decision makers
77	Vail Health Surgical AssociatesVail · 16 sites	Parent on file	17	26	Decision makers
78	Western NephrologyWheatridge · 5 sites	Parent on file	16	32	Decision makers
79	Southern Colorado ClinicPueblo · 7 sites	-	15	54	Decision makers
80	Pulmonary Associates PCColorado Springs · 2 sites	-	15	19	Decision makers
81	Denver Arthritis ClinicDenver · 2 sites	-	15	15	Decision makers
82	Melissa Memorial HospitalHolyoke · 1 site	Parent on file	14	33	Decision makers
83	Western Infectious Disease ConsultantsLakewood · 4 sites	-	14	14	Decision makers
84	Bloom HealthcareLakewood · 7 sites	Parent on file	13	144	Decision makers
85	High Plains Community Health CenterLamar · 5 sites	Parent on file	13	36	Decision makers
86	Mountain Family Health CentersGlenwood Springs · 11 sites	Parent on file	13	36	Decision makers
87	CommonSpirit Primary Care Horse GulchDurango · 5 sites	Parent on file	13	29	Decision makers
88	Associates in GastroenterologyColorado Springs · 2 sites	-	13	24	Decision makers
89	The Nephrology ClinicFort Collins · 5 sites	-	13	20	Decision makers
90	Colorado Infectious Disease AssociatesDenver · 2 sites	-	13	16	Decision makers
91	Cornerstone Family PracticeAurora · 2 sites	-	13	14	Decision makers
92	Dr. Mark A. Norden, MD, PCFrisco · 1 site	-	13	13	Decision makers
93	Rocky Mountain Infectious Disease SpecialistsAurora · 1 site	-	13	13	Decision makers
94	CareNow Urgent CareGreenwood Village · 13 sites	Parent on file	12	55	Decision makers
95	Colorado Springs Pulmonary ConsultantsColorado Springs · 3 sites	-	12	27	Decision makers
96	Miramont Wellness CentersFort Collins · 4 sites	-	12	21	Decision makers
97	Pikes Peak Nephrology AssociatesColorado Springs · 15 sites	-	12	19	Decision makers
98	Rangely Family MedicineRangely · 2 sites	Parent on file	12	17	Decision makers
99	CommonSpirit Senior Health First St. AnthonyLakewood · 2 sites	Parent on file	12	15	Decision makers
100	Magnolia Medical GroupDenver · 7 sites	-	11	41	Decision makers

Showing 51 to 100 of 575 primary care groups in Colorado

Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data

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