MR. STEVEN ELLIOT KOLKER (MD) – Anatomic Pathology & Clinical Pathology Physician, NPI 1598726457
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
191 PATHOLOGY in OR
Provider Addresses for MR. STEVEN ELLIOT KOLKER (MD)
1815 E 19th St Ste B
The Dalles, OR 970583385
Phone: (541) 316-6575
Fax: (541) 210-8913
Type: Location
Providence Saint John's Health Center, 2121, Santa Monica Boulevard, Santa Monica, Los Angeles County, California, 90404, United States
SANTA MONICA, CA 904042303
Phone: (310) 829-8101
Type: Mailing
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 $181.
Total Amount is formed as General ($181) + Research ($0) + Ownership ($0) = $181.
Last reported payment date: 2024-05-15 • Largest payer in this snapshot: UCB, Inc. ($147).
Total Amount
$181
General + Research + Ownership
Payments
3
Total payment records
General Amount
$181
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-05-15
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| UCB, Inc. | $147 |
| Cepheid | $18 |
| Siemens Medical Solutions USA, Inc. | $16 |
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: 2022-07-19
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20100601000717 | I | Pathology | OR | TBD |
| I20170616002354 | I | Pathology | CA | TBD |
| I20220719003221 | I | Pathology | 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 |
|---|---|---|---|---|
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | 4,992 | 2,622 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 408 | 142 | $0 |
| 88321 | Surgical pathology consultation and report on referred slides prepared elsewhere | 303 | 282 | $0 |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | 291 | 213 | $0 |
| 88312 | Special stained specimen slides to identify organisms including interpretation and report | 277 | 178 | $0 |
Insurance plans in this area (ZIP 97058)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PATHOLOGY | CA | 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 42 | 42 |
| PATHOLOGY | CA | 88312 | Special stained specimen slides to identify organisms including interpretation and report | 133 | 100 |
| PATHOLOGY | CA | 88342 | Tissue or cell analysis by immunologic technique | 86 | 84 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | CA |
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