DR. JOHN HADDEN OWNBY (MD) – Neurology Physician, NPI 1558343988
Neurology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,738 NEUROLOGY in TX
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Provider Addresses for DR. JOHN HADDEN OWNBY (MD)
6400 FANNIN ST STE 2510
HOUSTON, TX 770301537
Phone: (713) 704-6731
Fax: (713) 704-1796
Type: Mailing
Memorial Hermann Medical Plaza, 6400, Fannin Street, Texas Medical Center, Houston, Harris County, Texas, 77030, United States
SUITE 2510
HOUSTON, TX 770301521
Phone: (713) 704-7100
Fax: (713) 704-1796
Type: Location
10905 MEMORIAL HERMANN DR
PEARLAND, TX 775843490
Phone: (281) 929-4727
Fax: (281) 929-4728
Type: Mailing
10905 MEMORIAL HERMANN DR STE 111
PEARLAND, TX 775843490
Phone: (281) 929-4727
Fax: (281) 929-4728
Type: Location
3318 MERRICK ST
HOUSTON, TX 770251928
Phone: (832) 607-3696
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2010-08-31
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 |
|---|---|---|---|---|
| I20100831000404 | I | Neurology | 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 |
|---|---|---|---|---|
| G0425 | Telehealth consultation, emergency department or initial inpatient, typically 30 minutes communicating with the patient via telehealth | 35 | 35 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 30 | 30 | $0 |
| G0407 | Follow-up inpatient consultation, intermediate, physicians typically spend 25 minutes communicating with the patient via telehealth | 22 | 16 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 22 | 22 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 20 | 11 | $0 |
Insurance plans in this area (ZIP 77030)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | TX | |
| Family Practice | NC | |
| Internal Medicine, Cardiovascular Disease (Cardiology) | TX | |
| - | TX | |
| N E U R O L O G Y | AZ | |
| Pulmonary Disease | TX | |
| P S Y C H I A T R Y | TX | |
| Nurse Practitioner | TN | |
| Physician Assistant | TX | |
| Cardiac Surgery, Thoracic Surgery, Cardiac Surgery | TX |
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