NATSUMI HAMAHATA (MD) – Critical Care Medicine (Internal Medicine) Physician, NPI 1629507264
Critical Care Medicine (Internal Medicine) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,308 CRITICAL CARE (INTENSIVISTS) in PA
Provider Addresses for NATSUMI HAMAHATA (MD)
3600 FORBES AVE STE 140
PITTSBURGH, PA 152133410
Phone: (412) 647-6426
Type: Mailing
200 LOTHROP ST
PITTSBURGH, PA 152132536
Phone: (642) 647-3136
Type: Location
200 Lothrop St
Pittsburgh, PA 152132536
Phone: (642) 647-3136
Type: Location
Lusitana Street, Punchbowl, Honolulu, Honolulu County, Hawaii, 96817-1713, United States
HONOLULU, HI 968132409
Phone: (808) 586-2890
Type: Mailing
888 S KING ST
HONOLULU, HI 968133097
Phone: (808) 522-4000
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: 2023-07-21
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 |
|---|---|---|---|---|
| I20230721002566 | I | Critical Care (Intensivists) | HI | 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 |
|---|---|---|---|---|
| 99291 | Critical care, first 30-74 minutes | 70 | 35 | $0 |
| 99292 | Critical care, each additional 30 minutes | 22 | 16 | $0 |
Insurance plans in this area (ZIP 15213)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Critical Care (Intensivists) | HI | |
| Pulmonary Disease, Critical Care (Intensivists) | HI | |
| Critical Care (Intensivists) | HI | |
| Critical Care (Intensivists) | HI | |
| Critical Care (Intensivists) | CA | |
| Critical Care (Intensivists) | OR | |
| Pulmonary Disease, Critical Care (Intensivists) | MD | |
| General Surgery, Critical Care (Intensivists) | FL | |
| Critical Care (Intensivists) | NC | |
| Critical Care (Intensivists) | HI |
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