Quick answers
- Which hospitals does Richard J. Millstein work at?
- Medicare's official clinician data lists Richard J. Millstein at 5 hospitals: Medical Center of the Rockies, Poudre Valley Hospital, St Elizabeth Hospital, Sterling Regional Medcenter and UCHealth Greeley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Richard J. Millstein see patients?
- Medicare's clinician data lists 4 practice locations, including Firestone, CO, Longmont, CO and Castle Rock, CO. Call before your visit to confirm the address.
- What is Richard J. Millstein's specialty?
- Medicare lists Endocrinology as the primary specialty.
- Does Richard J. Millstein accept Medicare assignment?
- Yes. Medicare's clinician data says Richard J. Millstein accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Richard J. Millstein offer telehealth?
- Medicare's clinician data says Richard J. Millstein offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Richard J. Millstein?
- (303) 833-8880, as listed in official Medicare / NPI Registry data.
- What is Richard J. Millstein's NPI number?
- 1407101975. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Richard J. Millstein works
Medicare's Facility Affiliation Data lists Richard J. Millstein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Medical Center of the RockiesLoveland, CO · Acute Care Hospital · CCN 060119
- Poudre Valley HospitalFort Collins, CO · Acute Care Hospital · CCN 060010
- St Elizabeth HospitalFort Morgan, CO · Acute Care Hospital · CCN 060044
- Sterling Regional MedcenterSterling, CO · Acute Care Hospital · CCN 060076
- UCHealth Greeley HospitalGreeley, CO · Acute Care Hospital · CCN 060131
Practice locations
Addresses where Richard J. Millstein is enrolled with Medicare (CMS data updated 2026-10-02).
- 11083 Colorado BlvdFirestone, CO 80504 (303) 833‑8880
- 1925 Mountain View AveLongmont, CO 80501 (303) 776‑1234
- 4404 Barranca Ln, Unit 101Castle Rock, CO 80104 (720) 733‑5260
- 6767 29th StGreeley, CO 80634 (970) 224‑3636
Group practices
Medicare enrollment lists Richard J. Millstein as a member of this group (CMS data updated 2026-10-02).
- Poudre Valley Medical Group LLC2,440 clinicians in the group
Specialties
- Endocrinologyprimary
Other endocrinologists in Colorado
Clinicians with the same Medicare primary specialty in Colorado — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Kansas City College Of Medicine And Surgery |
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1407101975 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians