JOHN MICHAEL SR. HALPHEN (M.D.) – Geriatric Medicine (Family Medicine) Physician, NPI 1639289978
Geriatric Medicine (Family Medicine) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
13,290 INTERNAL MEDICINE in TX
Loading map...
Provider Addresses for JOHN MICHAEL SR. HALPHEN (M.D.)
523, East 22nd Street, Sunset Heights, Houston Heights, Houston, Harris County, Texas, 77008, United States
HOUSTON, TX 770082624
Phone: (713) 802-1048
Fax: (713) 869-1389
Type: Mailing
Kelley Street, Kashmere Gardens, Houston, Harris County, Texas, 77028, United States
HOUSTON, TX 770261967
Phone: (281) 952-1327
Fax: (713) 566-4474
Type: Location
6500 WEST LOOP S STE 200
BELLAIRE, TX 774013535
Phone: (713) 468-5150
Type: Location
1608 OAKDALE ST
HOUSTON, TX 770045931
Phone: (713) 515-2716
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
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: 2008-04-23
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 |
|---|---|---|---|---|
| I20080423000230 | I | Geriatric Medicine | 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 |
|---|---|---|---|---|
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 22 | 22 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 18 | 17 | $0 |
Insurance plans in this area (ZIP 77008)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | IL | |
| Anesthesiology, Critical Care (Intensivists) | TX | |
| A N E S T H E S I O L O G Y | TX | |
| - | TX | |
| Diagnostic Radiology | TX | |
| Physician Assistant | TX | |
| Certified Nurse Midwife (Cnm) | TX | |
| O T O L A R Y N G O L O G Y | TX | |
| Physician Assistant | TX | |
| Physician Assistant | TX |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.