DR. MARK BLAINE POTTER (D.O.) – Gastroenterology Physician, NPI 1992776884
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
474 GASTROENTEROLOGY in WA
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Provider Addresses for DR. MARK BLAINE POTTER (D.O.)
104, Granburg Circle, Oakwell Farms, San Antonio, Bexar County, Texas, 78218, United States
SAN ANTONIO, TX 782183033
Phone: (210) 826-1308
Type: Mailing
6th Avenue, Tacoma, Pierce County, Washington, 98403-1926, United States
TACOMA, WA 98405
Phone: (253) 272-8664
Fax: (253) 627-7880
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $37.
Total Amount is formed as General ($37) + Research ($0) + Ownership ($0) = $37.
Last reported payment date: 2024-05-24 • Largest payer in this snapshot: Olympus America Inc. ($37).
Total Amount
$37
General + Research + Ownership
Payments
2
Total payment records
General Amount
$37
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-05-24
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Olympus America Inc. | $37 |
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: 2024-11-06
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20110330000925 | I | Gastroenterology | WA | TBD |
| I20241106003070 | I | Gastroenterology | OR | 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 |
|---|---|---|---|---|
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 90 | 88 | $0 |
| 43235 | Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 60 | 55 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 45 | 45 | $0 |
| G0500 | Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 33 | 30 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 27 | 23 | $0 |
Insurance plans in this area (ZIP 78218)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | TX | 43235 | Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope | 65 | 61 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | SC | |
| Physician Assistant | WA | |
| - | WA | |
| General Surgery | MI | |
| - | WA | |
| Nurse Practitioner | WA | |
| - | WI | |
| - | WA | |
| - | WA | |
| Family Practice | WA |
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