MARK A WILLIAMS (MD) – Internal Medicine Physician, NPI 1033114988
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,526 INTERNAL MEDICINE in TN
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Provider Addresses for MARK A WILLIAMS (MD)
PO BOX 632476
CINCINNATI, OH 452632476
Phone: (423) 794-5520
Fax: (423) 282-6940
Type: Mailing
Johnson City Pediatrics, 301, Med Tech Parkway, Johnson City, Washington County, Tennessee, 37604, United States
STE 240
JOHNSON CITY, TN 376042364
Phone: (423) 794-5520
Fax: (423) 282-6940
Type: Location
215, East Springbrook Drive, Hill-N-Dale, Johnson City, Washington County, Tennessee, 37601, United States
JOHNSON CITY, TN 376011761
Phone: (423) 794-5520
Fax: (423) 282-6940
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 20 Open Payments records for all available years, with a total value of $369.
Total Amount is formed as General ($369) + Research ($0) + Ownership ($0) = $369.
Last reported payment date: 2024-12-04 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($128).
Total Amount
$369
General + Research + Ownership
Payments
20
Total payment records
General Amount
$369
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-04
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $128 |
| Lilly USA, LLC | $67 |
| GlaxoSmithKline, LLC. | $50 |
| ABBVIE INC. | $48 |
| Novo Nordisk Inc | $40 |
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: 2010-02-10
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 |
|---|---|---|---|---|
| I20100210000097 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| 80053 | Blood test, comprehensive group of blood chemicals | 2,185 | 1,144 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 1,518 | 887 | $0 |
| 85025 | Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 1,357 | 812 | $0 |
| 86140 | Measurement c-reactive protein for detection of infection or inflammation | 1,339 | 793 | $0 |
| 85027 | Complete blood cell count (red cells, white blood cell, platelets), automated test | 1,126 | 645 | $0 |
Insurance plans in this area (ZIP 45263)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | TN | 83036 | Hemoglobin A1C level | 269 | 137 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | TN | |
| Nurse Practitioner | VA | |
| Internal Medicine | OH | |
| - | TN | |
| - | TN | |
| - | TN | |
| Diagnostic Radiology | TN | |
| - | TN | |
| - | TN | |
| - | TN |
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