Colleen Sherkow, M.D.
NPI 1073755534 · Internal Medicine Physician · Wallingford, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Colleen Sherkow, M.D. is a Internal Medicine Physician provider in Wallingford, CT (NPI 1073755534).
Provider details
- NPI number
- 1073755534
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 051464 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
534 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 233 | $139 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 102 | $143 |
| Administration of Influenza Virus VaccineG0008 | 60 | $33 |
| Admn Sarscov2 Vacc 1 Dose90480 | 44 | $44 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 31 | $16 |
| Hemoglobin A1c Level83036 | 22 | $10 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 126 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 519 | 153 |
| Amlodipine Besylate | 471 | 139 |
| Rosuvastatin Calcium | 357 | 108 |
| Levothyroxine Sodium | 313 | 83 |
| Lisinopril | 227 | 69 |
| Hydrochlorothiazide | 226 | 67 |
| Tramadol Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-03-30
- Last updated
- 2013-12-16
Frequently asked questions
- What is Colleen Sherkow's NPI number?
- Colleen Sherkow's National Provider Identifier (NPI) is 1073755534, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen Sherkow's specialty?
- Colleen Sherkow is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Colleen Sherkow located?
- Colleen Sherkow's practice location on file with NPPES is 863 N Main Street Ext, Wallingford, CT 06492-2434.
- What is Colleen Sherkow's phone number?
- The practice phone number listed in the NPPES registry for Colleen Sherkow is (203) 694-5500.
- Does Colleen Sherkow accept Medicare?
- Colleen Sherkow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Colleen Sherkow's NPI active?
- Yes — Colleen Sherkow's NPI (1073755534) is active in the NPPES registry as of the last update on 2013-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.