DR. MICHAEL JOHN MELGAR (MD) – Internal Medicine Physician, NPI 1801893755
Internal Medicine Physician
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Profile Insights
NPPES metrics only — not quality of care.
18,052 INTERNAL MEDICINE in NY
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Provider Addresses for DR. MICHAEL JOHN MELGAR (MD)
107, Northern Boulevard, University Gardens, Great Neck, North Hempstead, Nassau County, New York, 11021, United States
SUITE 206
GREAT NECK, NY 110214309
Phone: (516) 829-2016
Fax: (516) 829-2019
Mailing address matches the actual address.
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: 2011-01-25
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 |
|---|---|---|---|---|
| I20110125000279 | I | Internal Medicine | NY | 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 |
|---|---|---|---|---|
| 36415 | Insertion of needle into vein for collection of blood sample | 765 | 406 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 420 | 265 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 290 | 268 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 245 | 168 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 164 | 164 | $0 |
Insurance plans in this area (ZIP 11021)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | NY | |
| - | PA | |
| A N E S T H E S I O L O G Y | NY | |
| O B S T E T R I C S/ G Y N E C O L O G Y | NY | |
| Internal Medicine | NY | |
| - | NY | |
| G A S T R O E N T E R O L O G Y | NY | |
| Neurology, Pediatric Medicine | NY | |
| Orthopedic Surgery | NY | |
| Hematology/Oncology, Internal Medicine | NY |
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