DR. CHRISTY M STEPHEN (M.D.) – Family Medicine Physician, NPI 1669446571
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
13,194 FAMILY PRACTICE in CA
Provider Addresses for DR. CHRISTY M STEPHEN (M.D.)
PO BOX 9602
MISSION HILLS, CA 913469602
Phone: (818) 837-5559
Fax: (818) 792-4793
Type: Mailing
11333 N SEPULVEDA BLVD
MISSION HILLS, CA 913451116
Phone: (818) 869-7269
Fax: (818) 869-7144
Type: Location
Medvin Clinical Research - Tujunga CA - Rheumatology Clinical Trials, 6673, Foothill Boulevard, Tujunga, Los Angeles, Los Angeles County, California, 91042, United States
TUJUNGA, CA 910422706
Phone: (818) 353-8581
Fax: (818) 353-0434
Type: Mailing
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: 2004-03-20
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 |
|---|---|---|---|---|
| I20040320000605 | I | Family Practice | CA | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 58 | 56 | $0 |
| 87426 | Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus | 31 | 31 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 31 | 30 | $0 |
| 85025 | Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 25 | 25 | $0 |
| 80053 | Blood test, comprehensive group of blood chemicals | 23 | 23 | $0 |
Insurance plans in this area (ZIP 91346)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| - | CA | |
| - | CA | |
| Gastroenterology, Internal Medicine | CA | |
| - | CA | |
| Family Practice | CA | |
| Family Practice | CA | |
| Physician Assistant | CA | |
| Family Practice | CA | |
| - | CA |
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