NPPES file of Aug 9, 2026

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 22 of 29.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

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

  1. Jessica RamirezMedical Physician Assistant1730590654
  2. Jeffrey Ramsey, DONephrology Physician1700463007
  3. Vincenzo Randazzo, PAMedical Physician Assistant1417034737
  4. David Randolph, DDSGeneral Practice Dentistry1326036443
  5. Michelle RathjenRegistered Nurse1316661341
  6. Nina Rathmann, LCSWClinical Social Worker1184134850
  7. Lea Ratliff, M.D.Hospice and Palliative Medicine (Family Medicine) Physician1861696726
  8. Michael Rauzzino, MD, FACSNeurological Surgery Physician1902947732
  9. Jana Ray, NNPCritical Care Neonatal Nurse Practitioner1669610176
  10. Susan Read, M.D.Gynecologic Oncology Physician1184018467
  11. Bailey RealeStudent in an Organized Health Care Education/Training Program1770384026
  12. Hannah Rector, DOStudent in an Organized Health Care Education/Training Program1588465819
  13. Mia Recupito, MDFamily Medicine Physician1043699465
  14. Jadon Redington, PA-CMedical Physician Assistant1740536804
  15. Ryan Reichert, DOAnesthesiology Physician1760125520
  16. Jarrod Reida, RNRegistered Nurse1316715162
  17. McKenzie Reifschneider, DCChiropractor1285696633
  18. Michael Renta, DPTPhysical Therapist1245746601
  19. Matthew Reynolds, DOSurgery Physician1417146085
  20. Ross Reynolds, PA-CPhysician Assistant1386941268
  21. Thomas Reynolds, D.O.Internal Medicine Physician1720471600
  22. Katrina Ribeiro, RNRegistered Nurse1235586033
  23. Corinne Ricci, DOStudent in an Organized Health Care Education/Training Program1033978267
  24. Michael RichardsSpecialist1194153155
  25. Timothy RichardsonMedical Physician Assistant1407378136
  26. Jessica Ridgley, D.O.Internal Medicine Physician1306076054
  27. Austin Riley, DOStudent in an Organized Health Care Education/Training Program1750239034
  28. Kristen RimmerSpeech-Language Pathologist1366832982
  29. John Riopelle, DOGastroenterology Physician1851428882
  30. Alicia Rippy, LPCProfessional Counselor1164002655
  31. Anthony RivasMental Health Counselor1164706933
  32. Anthony Robateau Colon, MDGastroenterology Physician1750841730
  33. Mark RobinsonNeurological Surgery Physician1720206014
  34. Michael Rocklin, M.D.Nephrology Physician1063494367
  35. Jordyn Roddy, PA-CSurgical Physician Assistant1659801454
  36. Rachel Rodriguez, M.D.Family Medicine Physician1700204765
  37. Megan Rogers, FNPFamily Nurse Practitioner1821977745
  38. Trisha Rogers, O.D.Optometrist1134213705
  39. Steve Rohleder, PHARMDPharmacist1134429608
  40. Samantha Roland, MDOphthalmology Physician1780817411
  41. Samuel Roll, CNIMOther Technician1417313099
  42. Danielle Romero, BCBABehavior Analyst1922936459
  43. David Roos, MDPediatrics Physician1962504118
  44. Tera RoseFamily Nurse Practitioner1821457284
  45. Nicole RosenMental Health Counselor1720936214
  46. Renee Rossi, M.D.Hospice and Palliative Medicine (Family Medicine) Physician1952690646
  47. Angela Rothkamp, LPCMental Health Counselor1598448623
  48. Amanda Roy, WHNP-BCWomen's Health Nurse Practitioner1548987696
  49. Lindy Royer, P.T.Physical Therapist1750415147
  50. Piper Rudel, FNPNurse Practitioner1922298900

The largest Colorado cities

  1. Denver25,068
  2. Colorado Springs19,771
  3. Aurora17,400
  4. Fort Collins6,928
  5. Boulder5,635

All of Colorado →

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.