DR. PARWIZ JOHN SIAGHANI (D.O) – Anatomic Pathology & Clinical Pathology Physician, NPI 1366700205
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,584 PATHOLOGY in CA
Provider Addresses for DR. PARWIZ JOHN SIAGHANI (D.O)
2801 ATLANTIC AVE
LONG BEACH, CA 90806
Phone: (562) 933-0717
Fax: (562) 933-0791
Type: Location
FILE 1319: 1801 W OLYMPIC BLVD
PASADENA, CA 911991319
Phone:
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
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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: 2017-06-23
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 |
|---|---|---|---|---|
| I20170623002527 | I | Pathology | 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 |
|---|---|---|---|---|
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 175 | 38 | $0 |
| 85060 | Blood smear interpretation by physician with written report | 144 | 131 | $0 |
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | 86 | 46 | $0 |
| 88360 | Microscopic genetic analysis of tumor, manual | 59 | 38 | $0 |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | 50 | 41 | $0 |
Insurance plans in this area (ZIP 90806)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| P A T H O L O G Y | CA | |
| - | CA | |
| - | CA | |
| P A T H O L O G Y | CO | |
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| Pathology, Internal Medicine | CA |
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