Douglas Graham Adler, M.D.
NPI 1891748687ActiveIndividual· Internal Medicine, Gastroenterology· Colorado Springs, CO
Internal Medicine, Gastroenterology (M.D.) with Portercare Adventist Health System, practicing in Colorado Springs, Colorado. 248 Medicare patients in 2024, $116,973 paid; nearly all of their 215 Part D prescriptions were generic (95%). Abbvie Inc. was the largest of 11 companies reporting payments in 2025, $75,711 in all, mostly speaking and faculty fees. Lists Adventhealth Castle Rock and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1891748687 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 19, 2006 |
| Last updated in NPPES | Dec 11, 2024 |
| Certified by provider | Dec 11, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | DR.0065026 | CO |
| Internal Medicine, Gastroenterology | 207RG0100X | L8257 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 248 |
|---|---|
| Services billed | 804 across 64 procedure codes |
| Paid by Medicare | $116,973 |
Part D prescriptions in 2024
| Prescriptions (claims) | 215 · 246 30-day fills |
|---|---|
| Patients | 145 |
| Total drug cost | $57,232 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Portercare Adventist Health SystemDenver, CO · 774 clinicians
Hospital affiliations
- Adventhealth Castle RockCastle Rock, CO
- Adventhealth LittletonLittleton, CO
- Adventhealth ParkerParker, CO
- Adventhealth PorterDenver, CO
Industry payments (Open Payments)
- 2025$75,711 · 62 payments from 11 companies
- 2024$118,495 · 99 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $24,338 | 23 |
| Olympus Corporation | $22,470 | 15 |
| Cook Incorporated | $9,056 | 7 |
| Conmed Corporation | $8,700 | 2 |
| Olympus America Inc. | $4,690 | 2 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$34,040 · 11 payments
- Consulting Fee$26,050 · 10 payments
- Compensation for serving as faculty or as a speaker for a medical education program$8,700 · 2 payments
- Travel and Lodging$5,866 · 15 payments
- Food and Beverage$1,055 · 24 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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