Dr. Stephen Douglas Haley, MD
Dr. Stephen Douglas Haley, MD is an Internal Medicine in Longmont, Colorado. Graduated from University of Colorado School of Medicine, Denver in 1998, 28 years ago. Practices with Colorado Permanente Medical Group PC, a 1,325-clinician group and accepts Medicare assignment. Licensed in Colorado.
- Years since qualifying
- 28
- Trained at
- University of Colorado School of Medicine, Denver
- Licensed in
- CO
- In the registry since
- 2007
- Specialties on file
- 2
What do these letters mean?
- MD — Doctor of Medicine
- A physician who completed allopathic medical school.
Practice location Address checks out
2345 Bent WayLongmont, CO 80503-7614
Phone: (303) 338-4545
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Pin is approximate — placed at the ZIP-code centre, not the exact door.
Specialties & licences
| Internal Medicine Physician (primary) | Taxonomy 207R00000X · Licence 38354 (CO) |
|---|---|
| Preventive Medicine/Occupational Environmental Medicine Physician | Taxonomy 2083P0500X · Licence DR.0038354 (CO) |
Record details
| NPI number | 1306973326 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | MD |
| Sole proprietor | No |
| NPI enumerated | February 27, 2007 |
| Last updated in NPPES | October 16, 2025 |
| Certification date | October 16, 2025 |
| Mailing address | 10350 E Dakota Ave, Denver, CO 80247-1314 |
Medicare enrollment
| Medicare specialty | INTERNAL MEDICINE |
|---|---|
| Medical school | UNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER |
| Graduated | 1998 (28 years in practice) |
| Group practice | Colorado Permanente Medical Group Pc — 1325 clinicians |
| Accepts Medicare assignment | Yes — accepts the Medicare-approved amount |
| Practice locations | 5 on file with Medicare |
Other providers in Longmont
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Frontier Internal Medicine PC
2030 W Mountain View Ave Ste 400, Longmont, CO 80501-3178 · (303) 776-1532
-
Dr. Freda Eva Gardner, MD
1611 Orion Pl, Longmont, CO 80504-8836 · (720) 340-4293
-
Dr. Stuart G Geer, MD
2345 Bent Way, Longmont, CO 80503-7614 · (303) 338-4545
-
Dr. Reginald Guy, MD
1925 W Mountain View Ave, Longmont, CO 80501-3128 · (303) 776-1234
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Peter Barkalow Holt, MD
2030 W Mountain View Ave Ste 400, Longmont, CO 80501-3178 · (303) 776-1532
-
Dr. Aiman Hussain, DO
1750 E Ken Pratt Blvd, Longmont, CO 80504-5311 · (720) 718-7000
-
Dr. Joann Osedebame Ikenyei, MD
1950 Mountain View Ave, Longmont, CO 80501-3129 · (303) 485-3066
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Dr. Hartmut Koelsch, MD
1925 W Mountain View Ave, Longmont, CO 80501-3128 · (303) 776-1234