DR. DAVID LOUIS PENN (M.D.) – Neurological Surgery Physician, NPI 1992143812
Neurological Surgery Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
223 NEUROSURGERY in MA
Provider Addresses for DR. DAVID LOUIS PENN (M.D.)
75 FRANCIS ST
SUITE AB-136
BOSTON, MA 021156110
Phone: (617) 732-8719
Type: Mailing
45 READE PL
POUGHKEEPSIE, NY 126013947
Phone: (845) 214-1922
Fax: (845) 214-1930
Type: Mailing
75 Francis St
Suite AB-136
Boston, MA 021156110
Phone: (617) 732-8719
Type: Location
24 Hospital Ave
Danbury, CT 068106077
Phone: (203) 739-7000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $358.
Total Amount is formed as General ($358) + Research ($0) + Ownership ($0) = $358.
Last reported payment date: 2024-01-03 • Largest payer in this snapshot: Boston Scientific Corporation ($115).
Total Amount
$358
General + Research + Ownership
Payments
8
Total payment records
General Amount
$358
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-01-03
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2021-07-27
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 |
|---|---|---|---|---|
| I20210727002069 | I | Neurosurgery | NY | TBD |
| I20210727002126 | I | Neurosurgery | CT | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 122 | 89 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 76 | 76 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 57 | 56 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 20 | 16 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 16 | 16 | $0 |
Insurance plans in this area (ZIP 02115)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CT | |
| - | CT | |
| - | WA | |
| A N E S T H E S I O L O G Y | GA | |
| Certified Registered Nurse Anesthetist (Crna) | CT | |
| - | NY | |
| General Surgery | CT | |
| - | CT | |
| - | CT | |
| - | GA |
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