OKSANA B HIRNIAK (D.O.) – Family Medicine Physician, NPI 1891750345
Family Medicine Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
13,194 FAMILY PRACTICE in CA
Provider Addresses for OKSANA B HIRNIAK (D.O.)
225 E 2ND AVE
ESCONDIDO, CA 920254249
Phone: (760) 291-6700
Fax: (760) 471-0513
Type: Mailing
277 RANCHEROS DR STE 100
SAN MARCOS, CA 920692959
Phone: (760) 291-6700
Fax: (760) 471-0513
Type: Location
332, South Juniper Street, Escondido, San Diego County, California, 92025, United States
SUITE 100
ESCONDIDO, CA 920254941
Phone: (866) 228-2236
Fax: (760) 737-3430
Type: Mailing
277, Rancheros Drive, San Marcos, San Diego County, California, 92069, United States
SUITE 100
SAN MARCOS, CA 920692976
Phone: (866) 228-2236
Fax: (760) 737-3430
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 39 Open Payments records for all available years, with a total value of $757.
Total Amount is formed as General ($757) + Research ($0) + Ownership ($0) = $757.
Last reported payment date: 2024-12-16 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($234).
Total Amount
$757
General + Research + Ownership
Payments
39
Total payment records
General Amount
$757
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $234 |
| Abbott Laboratories | $75 |
| Novo Nordisk Inc | $73 |
| Amgen Inc. | $59 |
| Lilly USA, LLC | $58 |
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: 2011-03-29
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 |
|---|---|---|---|---|
| I20110329000178 | 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 | 296 | 132 | $0 |
| 77067 | Screening mammography | 25 | 25 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 24 | 23 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 21 | 18 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 19 | 19 | $0 |
Insurance plans in this area (ZIP 92025)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | CA | |
| Family Practice | CA | |
| Family Practice | CA | |
| - | CA | |
| Nurse Practitioner | CA | |
| Internal Medicine | CA | |
| Family Practice | CA | |
| Nurse Practitioner | CA | |
| Internal Medicine, Pediatric Medicine | CA | |
| - | CA |
Reviews
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