DR. MICHAEL JOHN BARKER (M.D.) – Diagnostic Radiology Physician, NPI 1417147687
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,303 DIAGNOSTIC RADIOLOGY in TX
Provider Addresses for DR. MICHAEL JOHN BARKER (M.D.)
4502 MEDICAL DR
SAN ANTONIO, TX 782294402
Phone: (210) 358-4000
Type: Location
7703, Floyd Curl Drive, South Texas Medical Center, San Antonio, Bexar County, Texas, 78229, United States
SAN ANTONIO, TX 782293901
Phone: (210) 358-4000
Type: Mailing
1100 Wilford Hall Loop Bldg 4554
Jbsa Lackland, TX 782365638
Phone: (210) 292-6225
Type: Location
575 HILL COUNTRY DR STE 101
KERRVILLE, TX 780286024
Phone:
Type: Mailing
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 $41.
Total Amount is formed as General ($41) + Research ($0) + Ownership ($0) = $41.
Last reported payment date: 2023-03-17 • Largest payer in this snapshot: Progenics Pharmaceuticals, Inc. ($26).
Total Amount
$41
General + Research + Ownership
Payments
2
Total payment records
General Amount
$41
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-03-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Progenics Pharmaceuticals, Inc. | $26 |
| Telix Pharmaceuticals | $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: 2015-05-15
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 |
|---|---|---|---|---|
| I20150515001650 | I | Diagnostic Radiology | TX | 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 |
|---|---|---|---|---|
| Q9967 | Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 21,359 | 213 | $0 |
| A9577 | Injection, gadobenate dimeglumine (multihance), per ml | 1,844 | 107 | $0 |
| A9595 | Piflufolastat f-18, diagnostic, 1 millicurie | 462 | 62 | $0 |
| 71045 | X-ray of chest, 1 view | 345 | 332 | $0 |
| 77067 | Screening mammography | 281 | 281 | $0 |
Insurance plans in this area (ZIP 78229)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | TX | 71010 | X-ray of chest, 1 view, front | 639 | 537 |
| DIAGNOSTIC RADIOLOGY | TX | 71250 | CT scan chest | 35 | 34 |
| DIAGNOSTIC RADIOLOGY | TX | 73630 | X-ray of foot, minimum of 3 views | 23 | 20 |
| DIAGNOSTIC RADIOLOGY | TX | 74177 | CT scan of abdomen and pelvis with contrast | 51 | 51 |
| DIAGNOSTIC RADIOLOGY | TX | 93971 | Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers | 26 | 26 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | TX | |
| Nurse Practitioner | TX | |
| Nurse Practitioner | TX | |
| Certified Registered Nurse Anesthetist (Crna) | TX | |
| Certified Registered Nurse Anesthetist (Crna) | TX | |
| O B S T E T R I C S/ G Y N E C O L O G Y | TX | |
| Certified Nurse Midwife (Cnm) | TX | |
| Internal Medicine, Geriatric Medicine | KS | |
| Internal Medicine, Gastroenterology | TX | |
| Physician Assistant | TX |
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