DR. HAGOP V KARPANIAN (M.D.) – Anesthesiology Physician, NPI 1164534103
Anesthesiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
6,371 ANESTHESIOLOGY in CA
Loading map...
Provider Addresses for DR. HAGOP V KARPANIAN (M.D.)
Sippl MacDonald Ventures, 1422, El Camino Real, Menlo Park, San Mateo County, California, 94025, United States
MENLO PARK, CA 940254110
Phone: (650) 903-9500
Fax: (650) 903-9900
Type: Mailing
687 TRIUNFO CANYON RD
WESTLAKE VILLAGE, CA 913612056
Phone: (650) 388-0062
Type: Mailing
215 W JANSS RD
THOUSAND OAKS, CA 913601847
Phone: (650) 388-0062
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $168.
Total Amount is formed as General ($168) + Research ($0) + Ownership ($0) = $168.
Last reported payment date: 2024-11-19 • Largest payer in this snapshot: XTANT MEDICAL INC ($121).
Total Amount
$168
General + Research + Ownership
Payments
3
Total payment records
General Amount
$168
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| XTANT MEDICAL INC | $121 |
| Intuitive Surgical, Inc. | $38 |
| Heraeus Medical, LLC. | $9 |
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: 2009-08-17
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 |
|---|---|---|---|---|
| I20090817000163 | I | Anesthesiology | 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 |
|---|---|---|---|---|
| 00812 | Anesthesia for exam of colon using an endoscope | 29 | 29 | $0 |
| 01402 | Anesthesia for procedure for total knee joint replacement | 18 | 18 | $0 |
| 36620 | Insertion of artery tube for blood sampling or infusion through skin | 18 | 18 | $0 |
| 01926 | Anesthesia for x-ray on artery of brain, heart, or chest | 17 | 17 | $0 |
| 64447 | Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) | 16 | 16 | $0 |
Insurance plans in this area (ZIP 94025)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| A N E S T H E S I O L O G Y | IL | |
| A N E S T H E S I O L O G Y | CA | |
| A N E S T H E S I O L O G Y | CA | |
| A N E S T H E S I O L O G Y | CA | |
| A N E S T H E S I O L O G Y | CA | |
| A N E S T H E S I O L O G Y | NY | |
| A N E S T H E S I O L O G Y | CA | |
| A N E S T H E S I O L O G Y | IL | |
| A N E S T H E S I O L O G Y | CA | |
| - | CA |
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.