DAVID K. HAHN (MD) – Neurology Physician, NPI 1053625459
Neurology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
508 NEUROLOGY in CT
Provider Addresses for DAVID K. HAHN (MD)
115 MASON ST STE 1
GREENWICH, CT 068306630
Phone: (718) 514-0224
Type: Mailing
29 HOSPITAL PLAZA
SUITE 602
STAMFORD, CT 069023602
Phone: (203) 276-4464
Fax: (203) 276-4468
Type: Mailing
9110 COLLEGE POINTE CT
FORT MYERS, FL 339193244
Phone: (239) 208-2212
Fax: (239) 208-3994
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 $22.
Total Amount is formed as General ($22) + Research ($0) + Ownership ($0) = $22.
Last reported payment date: 2023-06-06 • Largest payer in this snapshot: Genentech USA, Inc. ($22).
Total Amount
$22
General + Research + Ownership
Payments
1
Total payment records
General Amount
$22
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-06-06
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Genentech USA, Inc. | $22 |
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: 2017-06-15
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20151106001648 | I | Neurology | CT | TBD |
| I20170615000578 | I | Neurology | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 176 | 108 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 90 | 89 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 57 | 55 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 29 | 20 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 18 | 18 | $0 |
Insurance plans in this area (ZIP 06830)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Cardiovascular Disease (Cardiology) | NY | |
| Physician Assistant | CT | |
| Internal Medicine, Hospitalist | TN | |
| Physician Assistant | CT | |
| Physician Assistant | CT | |
| Physician Assistant | CT | |
| Internal Medicine | CT | |
| - | CT | |
| - | CT | |
| Physician Assistant | CT |
Reviews
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