ROGER H KARLIN (MD) – Internal Medicine Physician, NPI 1700894177
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
71 ALLERGY/IMMUNOLOGY in CT
Provider Addresses for ROGER H KARLIN (MD)
88 ROUTE 37
NEW FAIRFIELD, CT 06812
Phone: (203) 746-2436
Fax: (203) 746-3205
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)
CMS reports 78 Open Payments records for all available years, with a total value of $1,679.
Total Amount is formed as General ($1,679) + Research ($0) + Ownership ($0) = $1,679.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($518).
Total Amount
$1,679
General + Research + Ownership
Payments
78
Total payment records
General Amount
$1,679
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $518 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $256 |
| Novo Nordisk Inc | $178 |
| PFIZER INC. | $152 |
| ABBVIE INC. | $103 |
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: 2005-04-14
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 |
|---|---|---|---|---|
| I20050414001059 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 559 | 177 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 314 | 167 | $0 |
| 94010 | Test to measure expiratory airflow and volume | 297 | 123 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 140 | 125 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 134 | 121 | $0 |
Insurance plans in this area (ZIP 06812)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | CT | 95004 | Injection of allergenic extracts into skin, accessed through the skin | 1095 | 15 |
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