Colleen Sherkow, M.D.
Internal Medicine Physician · Wallingford, CT
Colleen Sherkow, M.D. is an internal medicine physician with a practice address in Wallingford, Connecticut, and NPI 1073755534, issued on Mar 30, 2009. Check the license (Connecticut 051464, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Colleen Sherkow
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 051464 CT
Self-reported in NPPES; status is on the state search - Practice location
- 863 N Main Street Ext, Wallingford, CT 06492
- Phone
- (203) 694-5500
- Enumerated
- Mar 30, 2009
- Record last updated
- Dec 16, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (203) 694-5520
- Medicaid ID
- 008046671 CT
- Medicare enrollment
- Enrolled (PECOS I20140127001607); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 863 N Main Street Ext
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Colleen Sherkow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 051464Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average internal medicine physician in 2024
8,269 Medicare Part D claims for 683 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 327 claims were for opioids.
Most prescribed
- Atorvastatin Calcium519 claims
- Amlodipine Besylate471 claims
- Rosuvastatin Calcium357 claims
- Levothyroxine Sodium313 claims
- Lisinopril227 claims
- Hydrochlorothiazide226 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 93.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Hartford Healthcare Medical Group IncSouthington, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Colleen Sherkow among 2,623 internal medicine physician records in Connecticut
Colleen Sherkow, M.D. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 60% of them.
- NPI issued2009 · 60% of these records are older, 38% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2009 · median 2004 among the 1,646 with a school on file
- Record last updated2013 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
32 internal medicine physician records list a practice address in Wallingford
They are 32 of the 863 NPPES records with a practice address in Wallingford, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Wallingford → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Muhammad Al Mounayer, M.D.Wallingford, CT 064921093717837
- Alla Bernshteyn, MDWallingford, CT 064921063499507
- Anatoly Braylovsky, MDWallingford, CT 064921023004124
- Santosh Doddamane, DOWallingford, CT 064921669491775
- Vicki Ehrlich, M.D.Wallingford, CT 064921639150337
- Sarah Finnegan, MDWallingford, CT 064921164501763
- Sue-Ellen Franklyn-Benson, M.D.Wallingford, CT 064921245288265
- Jordan Goetz, MDYalesville, CT 064921104893171
Common questions
What is Colleen Sherkow, M.D.'s NPI number?
Colleen Sherkow, M.D.'s National Provider Identifier (NPI) is 1073755534, issued on Mar 30, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Colleen Sherkow, M.D. located?
The NPPES record lists a practice address at 863 N Main Street Ext, Wallingford, CT, 06492. Phone: (203) 694-5500. Providers update this record themselves, so call before visiting.
How can I verify Colleen Sherkow, M.D.'s license?
NPPES lists Connecticut license number 051464, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Colleen Sherkow, M.D. prescribe under Medicare Part D?
In 2024, Colleen Sherkow, M.D. had 8,269 Medicare Part D claims for 683 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Colleen Sherkow, M.D.'s MIPS final score?
The 2023 MIPS final score is 93.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.