NPI age
19 years
Enumerated 2006-07-10
● Active
Type 1 · Individual
DR. Douglas Millet Cluff, M.D.
Cluff is 1 of 140 family medicine providers in Irving and 1 of 15966 in Texas.
Primary specialty
Family Medicine
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2009-09-15
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 15966 active family medicine providers in Texas.
NPI age
19 years
↑ 2 yr above median (17 yr)
State licenses
1 state
8% of peers hold multiple states
Subspecialties
0
26% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-07Enumerated in NPPES
2006
2026
Where they practice
Practice location
400 W Ih 635 Fwy, Suite 210
Irving, TX 750633718
Mailing address
400 W Ih 635 Fwy, Suite 210
Irving, TX 750633718
Specialties
-
Family Medicine PrimaryFamily Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 8B4360 | BCBS |
| 05 (TX) | 149129201 |
Practice context
Part of a multi-provider practice. 13 other active providers share this practice address in NPPES.
Recently enumerated nearby: 2 new family medicine providers have been added in Irving in the last 180 days.
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Request a quote →How to verify this provider
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.