ALAN D GRINDSTAFF (MD) – Anatomic Pathology & Clinical Pathology Physician, NPI 1801856935
Anatomic Pathology & Clinical Pathology Physician
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Profile Insights
NPPES metrics only — not quality of care.
460 PATHOLOGY in TN
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Provider Addresses for ALAN D GRINDSTAFF (MD)
University of Tennessee Medical Center, 1924, Alcoa Highway, Knoxville, Knox County, Tennessee, 37920, United States
THE UNIVERSITY OF TENN MEDICAL CENTER PATHOLOGY DEPT
KNOXVILLE, TN 379206999
Phone: (865) 305-8994
Fax: (865) 305-6866
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
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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 |
|---|---|---|---|---|
| I20101101001225 | I | Pathology | TN | 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 | 794 | 401 | $0 |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | 257 | 199 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 221 | 74 | $0 |
| 88307 | Pathology examination of tissue using a microscope, moderately high complexity | 172 | 110 | $0 |
| 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 69 | 64 | $0 |
Insurance plans in this area (ZIP 37920)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PATHOLOGY | TN | 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 163 | 157 |
| PATHOLOGY | TN | 88312 | Special stained specimen slides to identify organisms including interpretation and report | 22 | 14 |
| PATHOLOGY | TN | 88342 | Tissue or cell analysis by immunologic technique | 12 | 12 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| P A T H O L O G Y | WI | |
| P A T H O L O G Y | TN | |
| P A T H O L O G Y | TN | |
| P A T H O L O G Y | TN | |
| P A T H O L O G Y | TN | |
| - | TN | |
| P A T H O L O G Y | AL | |
| - | TN | |
| P A T H O L O G Y | TN | |
| P A T H O L O G Y | TN |
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