SHAHAB SEAN SHAHANGIAN (DO) – Critical Care Medicine (Internal Medicine) Physician, NPI 1023465622
Critical Care Medicine (Internal Medicine) Physician
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Profile Insights
NPPES metrics only — not quality of care.
1,780 PULMONARY DISEASE in CA
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Provider Addresses for SHAHAB SEAN SHAHANGIAN (DO)
5221, Crown Avenue, La Cañada Flintridge, Los Angeles County, California, 91011, United States
LA CANADA, CA 910112805
Phone: (818) 532-8211
Type: Mailing
Loma Linda University Medical Center, 11234, Anderson Street, Loma Linda, San Bernardino County, California, 92354, United States
LOMA LINDA, CA 923542804
Phone: (818) 532-8211
Type: Location
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: 2021-04-20
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 |
|---|---|---|---|---|
| I20210420000993 | I | Pulmonary Disease | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 91011)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Pulmonary Disease, Critical Care (Intensivists) | CA | |
| Critical Care (Intensivists), Internal Medicine, Pulmonary Disease, Sleep Medicine | CA | |
| Critical Care (Intensivists) | NM | |
| - | NV | |
| Critical Care (Intensivists) | MD | |
| Emergency Medicine, Critical Care (Intensivists) | OR | |
| Internal Medicine, Pulmonary Disease, Critical Care (Intensivists) | CA | |
| Critical Care (Intensivists) | CA | |
| Pulmonary Disease, Critical Care (Intensivists) | CA | |
| Critical Care (Intensivists), Pulmonary Disease | CA |
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