DONALD BERTRAM CHALFIN (MD) – Critical Care Medicine (Internal Medicine) Physician, NPI 1366479545
Critical Care Medicine (Internal Medicine) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,811 CRITICAL CARE (INTENSIVISTS) in NY
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Provider Addresses for DONALD BERTRAM CHALFIN (MD)
36, Corchaug Avenue, Manhasset Isle, Port Washington, Town of North Hempstead, Nassau County, New York, 11050, United States
2ND FLOOR
PORT WASHINGTON, NY 110502020
Phone: (516) 767-6332
Type: Mailing
Eastchester Road, The Bronx, Bronx County, New York, 10469, United States
MONTEFIORE MEDICINE CENTER/DIVISION OF CRITICAL CARE
BRONX, NY 10461
Phone: (718) 904-3141
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $39.
Total Amount is formed as General ($39) + Research ($0) + Ownership ($0) = $39.
Last reported payment date: 2023-05-05 • Largest payer in this snapshot: Novo Nordisk Inc ($39).
Total Amount
$39
General + Research + Ownership
Payments
1
Total payment records
General Amount
$39
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-05-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novo Nordisk Inc | $39 |
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: 2021-09-30
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20040319000094 | I | Critical Care (Intensivists) | NY | TBD |
| I20141203000052 | I | Critical Care (Intensivists) | CA | TBD |
| I20210930000541 | I | Critical Care (Intensivists) | TX | 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 |
|---|---|---|---|---|
| G0508 | Telehealth consultation, critical care, initial , physicians typically spend 60 minutes communicating with the patient and providers via telehealth | 61 | 61 | $0 |
Insurance plans in this area (ZIP 11050)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Pulmonary Disease | CA | |
| Pulmonary Disease, Critical Care (Intensivists), Pulmonary Disease, Internal Medicine | CA | |
| Infectious Disease | CA | |
| A N E S T H E S I O L O G Y | IL | |
| Emergency Medicine | PA |
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