NPPES file of Aug 9, 2026

Sharon Karp, M.D.

Rheumatology Physician · Stamford, CT

Sharon Karp, M.D. is a rheumatology physician with a practice address in Stamford, Connecticut, and NPI 1265507768, issued on Nov 21, 2006. Check the license (Connecticut 27019, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265507768
Name
Sharon Karp
Credential
M.D.
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
27019 CT
Self-reported in NPPES; status is on the state search
Practice location
1450 Washington Blvd, Stamford, CT 06902
Phone
(203) 327-9321
Enumerated
Nov 21, 2006
Record last updated
Jan 7, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(203) 406-1744
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1450 Washington Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bryan Dorf, D.O.Internal Medicine Physician1407921067
  2. Nina Inamdar, M.D.Internal Medicine Physician1053491597
  3. Do Yoon Kim, D.D.SDentist1164777363
  4. Ted Listokin, M.D.Internal Medicine Physician1144395716
  5. Katharine Meyers, M.D.Internal Medicine Physician1033285333
  6. David Rosh, DMDDentist1891849865

Verify Sharon Karp in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 27019
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

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12% fewer Medicare Part D claims than the average rheumatology physician in 2024

1,734 Medicare Part D claims for 202 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 17 claims were for opioids.

  1. Sharon Karp1,734
  2. Specialty average1,978

Most prescribed

  1. Hydroxychloroquine Sulfate294 claims
  2. Methotrexate242 claims
  3. Prednisone219 claims
  4. Sulfasalazine61 claims
  5. Folic Acid48 claims
  6. Humira(Cf) Pen41 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 practice group's MIPS final score for 2023 (Medicare payment program): 91.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score90.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Rheumatology Physician providers in Connecticut

There are 145 rheumatology physician records in Connecticut.

Other rheumatology physician records in Connecticut

  1. Crispin Abarientos, M.D.Middletown, CT1124292966
  2. Aryeh Abeles, M.D.Meriden, CT1285737155
  3. Micha Abeles, M.D.Meriden, CT1497751556
  4. Jackilyn Annelli, PANorwich, CT1245085315
  5. Sandra Apenteng, MDGlastonbury, CT1801359138
  6. Catharine Arnold, MDGuilford, CT1306909742
  7. Daisy Bang, MDShelton, CT1356579460
  8. Erik Beger, M.DNorwalk, CT1992801989
  9. Daniel Belin, M.D.Middletown, CT1841265048
  10. Lana Bernstein, M.D.Greenwich, CT1912012857

Common questions

What is Sharon Karp, M.D.'s NPI number?

Sharon Karp, M.D.'s National Provider Identifier (NPI) is 1265507768, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sharon Karp, M.D. located?

The NPPES record lists a practice address at 1450 Washington Blvd, Stamford, CT, 06902. Phone: (203) 327-9321. Providers update this record themselves, so call before visiting.

How can I verify Sharon Karp, M.D.'s license?

NPPES lists Connecticut license number 27019, 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 Sharon Karp, M.D. prescribe under Medicare Part D?

In 2024, Sharon Karp, M.D. had 1,734 Medicare Part D claims for 202 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.

What is Sharon Karp, M.D.'s MIPS final score?

The 2023 MIPS final score is 91.6 of 100, reported for the practice group. 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.