NPPES file of Aug 9, 2026

Siobhan Collins, MD

MOHS-Micrographic Surgery Physician · Farmington, CT

Siobhan Collins, MD is a mohs-micrographic surgery physician with a practice address in Farmington, Connecticut, and NPI 1790888584, issued on Sep 7, 2006. Check the license (Connecticut 040694, 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
1790888584
Name
Siobhan Collins
Credential
MD
Primary taxonomy
MOHS-Micrographic Surgery Physician 207ND0101X
License number
040694 CT
Self-reported in NPPES; status is on the state search
Practice location
499 Farmington Ave, Farmington, CT 06032
Phone
(860) 676-1900
Enumerated
Sep 7, 2006
Record last updated
Mar 6, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(860) 409-0602
Medicare enrollment
Enrolled (PECOS I20050613001018); accepts Medicare assignment
Medical or professional school
University Of Connecticut School Of Medicine, 1998
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 499 Farmington Ave

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

  1. Francis Blanco, LOOptician1548895196
  2. David Bushley, M.D.Ophthalmology Physician1952375792
  3. Daniel Catuccio, RPTPhysical Therapist1023344223
  4. Kimberly Ditolla, O.D.Optometrist1194909572
  5. Martin Edwards, M.D.Ophthalmology Physician1497703847
  6. Geoffrey Emerick, MDOphthalmology Physician1497729388

Verify Siobhan Collins in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 040694
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

12% fewer Medicare Part D claims than the average mohs-micrographic surgery physician in 2024

504 Medicare Part D claims for 346 beneficiaries, against an average of 570 among the 1,396 providers of this specialty who prescribed in Part D.

  1. Siobhan Collins504
  2. Specialty average570

Most prescribed

  1. Cephalexin291 claims
  2. Clindamycin Hcl31 claims
  3. Mupirocin31 claims
  4. Azithromycin24 claims
  5. Imiquimod24 claims
  6. Fluorouracil19 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): 79.9 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.

  1. Qualityout of 100 · 30% of the final score59.7
  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; category weights for 2023 (qpp.cms.gov).

Siobhan Collins among 11 mohs-micrographic surgery physician records in Connecticut

Siobhan Collins, MD is one of 11 mohs-micrographic surgery physician records with a practice address in Connecticut. 100% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 36% newer
  • In a Medicare fileYes · 100% of these records are
  • In the CMS Doctors and Clinicians fileYes · 91% of these records are
  • Graduated1998 · median 2000 among the 10 with a school on file
  • Record last updated2012 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ND0101X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

MOHS-Micrographic Surgery Physician providers in Connecticut

There are 11 mohs-micrographic surgery physician records in Connecticut.

The 8 mohs-micrographic surgery physician records with the nearest ZIP codes

  1. Hao Feng, M.D.Farmington, CT 060321033520556
  2. Daniel KlufasFarmington, CT 060321962933572
  3. Jeanne Young, M.D.Avon, CT 060011285715300
  4. John West, M.D.Mystic, CT 063551487606117
  5. David Chen, M.D.Norwich, CT 063601922364611
  6. Hanspaul Makkar, MDCromwell, CT 064161467488510
  7. James Whalen, MDCromwell, CT 064161780681064
  8. Barry Richter, MD, PCGuilford, CT 064371497795314

Common questions

What is Siobhan Collins, MD's NPI number?

Siobhan Collins, MD's National Provider Identifier (NPI) is 1790888584, issued on Sep 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Siobhan Collins, MD located?

The NPPES record lists a practice address at 499 Farmington Ave, Farmington, CT, 06032. Phone: (860) 676-1900. Providers update this record themselves, so call before visiting.

How can I verify Siobhan Collins, MD's license?

NPPES lists Connecticut license number 040694, 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 Siobhan Collins, MD prescribe under Medicare Part D?

In 2024, Siobhan Collins, MD had 504 Medicare Part D claims for 346 beneficiaries; the average among mohs-micrographic surgery physician prescribers was 570. Part D covers Medicare prescriptions only.

What is Siobhan Collins, MD's MIPS final score?

The 2023 MIPS final score is 79.9 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.