DENNIS L SIMPSON (M.D.) – Internal Medicine Physician, NPI 1316979644
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,056 INTERNAL MEDICINE in WA
Provider Addresses for DENNIS L SIMPSON (M.D.)
19501 STATE ROUTE 195
PULLMAN, WA 991639610
Phone: (509) 332-2517
Fax: (509) 334-9247
Type: Location
Southeast Bishop Boulevard, Pullman, Whitman County, Washington, 99164, United States
PULLMAN, WA 991635537
Phone: (509) 332-2517
Fax: (509) 334-9247
Type: Mailing
19501 State Route 195
Pullman, WA 991639610
Phone: (509) 332-2517
Fax: (509) 334-9247
Type: Location
825 SE BISHOP BLVD STE 200
PULLMAN, WA 991635537
Phone: (509) 332-2517
Fax: (509) 334-9247
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $65.
Total Amount is formed as General ($65) + Research ($0) + Ownership ($0) = $65.
Last reported payment date: 2024-04-10 • Largest payer in this snapshot: SANOFI PASTEUR INC. ($27).
Total Amount
$65
General + Research + Ownership
Payments
3
Total payment records
General Amount
$65
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-04-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| SANOFI PASTEUR INC. | $27 |
| E.R. Squibb & Sons, L.L.C. | $22 |
| Otsuka America Pharmaceutical, Inc. | $15 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2010-11-01
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20101101000892 | I | Internal Medicine | WA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 36415 | Insertion of needle into vein for collection of blood sample | 623 | 358 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 610 | 283 | $0 |
| 17003 | Destruction of precancer skin growth, 2-14 growths | 332 | 53 | $0 |
| 80053 | Blood test, comprehensive group of blood chemicals | 331 | 302 | $0 |
| 85025 | Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 321 | 293 | $0 |
Insurance plans in this area (ZIP 99163)
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Provider's Procedures
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