DR. COLLEEN SHERKOW (M.D.) – Internal Medicine Physician, NPI 1073755534
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,447 INTERNAL MEDICINE in CT
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Provider Addresses for DR. COLLEEN SHERKOW (M.D.)
863, North Main Street Extension, Yalesville, Wallingford, South Central Connecticut Planning Region, Connecticut, 06492, United States
SUITE 103
WALLINGFORD, CT 064922434
Phone: (203) 694-5500
Fax: (203) 694-5520
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: 2014-01-27
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 |
|---|---|---|---|---|
| I20140127001607 | 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 | 273 | 133 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 106 | 106 | $0 |
| G0008 | Administration of influenza virus vaccine | 68 | 68 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 47 | 46 | $0 |
| 90662 | Influenza vaccine split virus, preservative free | 46 | 46 | $0 |
Insurance plans in this area (ZIP 06492)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | CT | 90670 | Pneumococcal vaccine for injection into muscle | 50 | 50 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | CT | |
| - | CT | |
| - | MA | |
| - | CT | |
| Internal Medicine | IL | |
| - | CT | |
| - | CT | |
| Nurse Practitioner | CT | |
| - | CT | |
| - | CT |
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