Doctors and health care providers in Lone Tree, CO
1,405 individual NPPES records list a practice address in Lone Tree, 23rd of 193 Colorado cities. The largest group is students in training: 114, 8% of the city's records, against 3% across Colorado. Page 20 of 29.
The 8 largest groups in Lone Tree
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Lone Tree in Colorado
- Rank in Colorado23rd of 193 cities by records
- Share of the state0.9% of Colorado's records
- Specialties present25 or more taxonomy codes
- Top three groups20% of all records
- Students in training rank7th of the 10 Colorado cities with the most
Compared with Colorado as a whole, Lone Tree has 7.9× the state's share of gastroenterology physician records and 0.30× its share of clinical social worker records.
Providers in Lone Tree, alphabetically
- Caden NowakStudent in an Organized Health Care Education/Training Program1487281200
- Kirsty O'Donovan, MDPsychiatry Physician1568599520
- Joseph O'Leary, D.D.S.General Practice Dentistry1306063995
- Jeannie O'Rourke, D.P.M.Foot & Ankle Surgery Podiatrist1942397575
- Kate Odenwald, RN, ACNP-BCAcute Care Nurse Practitioner1336441021
- Shannon Oehrle, FNP-CFamily Nurse Practitioner1598364952
- Sandy Oesterreicher, MDPediatric Gastroenterology Physician1427142843
- Kimberly Olson, RNHigh-Risk Obstetric Registered Nurse1205549888
- Samuel Olson, MDInternal Medicine Physician1326665654
- Galina Omelioussik, NPFamily Nurse Practitioner1609121102
- Stephanie OnanClinical Social Worker1184442535
- Adoniz OrdonezSurgical Assistant1922798727
- Trevor Oren, MDOrthopaedic Surgery Physician1679610950
- Gretchen Orosz, MDGeriatric Medicine (Internal Medicine) Physician1609864842
- Richard Ort, M.D.Dermatology Physician1093776593
- Alisia Ortiz, WHNP-BC, MSNWomen's Health Nurse Practitioner1922417781
- Angela Osborn, DDSGeneral Practice Dentistry1578678637
- Rebecca OsborneStudent in an Organized Health Care Education/Training Program1013862317
- Heidi Oster, M.D.Obstetrics & Gynecology Physician1902863541
- Linnea Osterberg, DPTPhysical Therapist1962109553
- Ronald Ott, PACSurgical Physician Assistant1700896966
- Marc Otto, O.D.Optometrist1720413552
- April Ouedraogo, M.A. EDSMental Health Counselor1558835348
- Zach Overgaard, PT, DPTPhysical Therapist1891177598
- Karen Palmer, RNCHigh-Risk Obstetric Registered Nurse1841991692
- Sarah Palmer, PA-CSurgical Physician Assistant1053710574
- Fatima Sheilla PalombaAmbulatory Care Registered Nurse1255704110
- Jennifer Pan, M.D.Ophthalmology Physician1871999805
- Ximena Pareja, DDSPediatric Dentistry1366419855
- Elise PariseauStudent in an Organized Health Care Education/Training Program1609677798
- Charles Park, M.D.Psychiatry Physician1235214131
- Hy Gia Park, MPH, MS, MDPsychiatry Physician1649444829
- Gannon Parker, PAPhysician Assistant1316672215
- Susan Pash-Lohr, DOFamily Medicine Physician1609837186
- Devang Patel, M.D.Internal Medicine Physician1477934396
- Isheet Patel, M.D.Internal Medicine Physician1275914194
- Rachel Patel, M.D.Ophthalmology Physician1578099073
- Shivani Pathak, M.D.Otolaryngology Physician1962898361
- Cary Patt, M.DGastroenterology Physician1801900048
- Casey Patterson, PHARMDPharmacist1699053439
- Marissa Patterson, DOStudent in an Organized Health Care Education/Training Program1518768852
- Mary Peiffer, NPNurse Practitioner1790454601
- Melissa Pelkey, MDAnesthesiology Physician1407615909
- Ricardo Pena, MDSurgery Physician1982720512
- Kimberly Pengel, MDOrthopaedic Surgery Physician1871680926
- Stephanie Penrose, M.D.Obstetrics & Gynecology Physician1770625535
- Michael Peppler, DMDDentist1942492335
- Mark Perea, MDFamily Medicine Physician1225092414
- Cynthia Peschong, ARNP, FNP-BCFamily Nurse Practitioner1164709366
- Justin PetersInternal Medicine Physician1750843801
The largest Colorado cities
- Denver25,068
- Colorado Springs19,771
- Aurora17,400
- Fort Collins6,928
- Boulder5,635
How to read this directory
Lone Tree, Colorado appears in the CMS National Plan and Provider Enumeration System with 1,405 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Lone Tree - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Lone Tree practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.
The provider mix in Lone Tree is weighted toward Student in an Organized Health Care Education/Training Program (114 clinicians, followed by Registered Nurse with 91 and Physician Assistant with 76). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Colorado's population, Lone Tree reports roughly 23.9 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.
Of Colorado's most common specialties, Behavior Technician is the most prominent one with no provider currently listing a Lone Tree practice address, a coverage gap Lone Tree patients typically fill by traveling to a larger nearby hub.
For Lone Tree patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.
For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.
Common questions
How many doctors are in Lone Tree, CO?
There are 1,405 registered healthcare providers in Lone Tree, CO, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Lone Tree?
The most common specialties in Lone Tree are Student in an Organized Health Care Education/Training Program, Registered Nurse, Physician Assistant, Physical Therapist, Family Nurse Practitioner. Student in an Organized Health Care Education/Training Program has the most providers with 114.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.