Elizabeth K. Nelligan, M.D.
Family Medicine Physician · Essex, CT
Elizabeth K. Nelligan, M.D. is a family medicine physician with a practice address in Essex, Connecticut, and NPI 1174663884, issued on Feb 8, 2007. Check the license (Connecticut 044749, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Elizabeth K. Nelligan
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 044749 CT
Self-reported in NPPES; status is on the state search - Practice location
- 147 Westbrook RD, Essex, CT 06426
- Phone
- (860) 767-8265
- Enumerated
- Feb 8, 2007
- Record last updated
- Apr 7, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (860) 358-8653
- Medicaid ID
- 1174663884 CT
- Medicare enrollment
- Enrolled (PECOS I20070223000398); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 958 in Connecticut → Look up another NPI →
Also registered at 147 Westbrook RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ioanna Anastasiadis, PAPhysician Assistant1790858058
- Suzanne Arcuni, APRNFamily Nurse Practitioner1144415514
- Karen Goldfinger, PH.D.Clinical Psychologist1730218223
- Jessica Hansen, PAPhysician Assistant1679646921
- Siobhan Harder, APRNFamily Nurse Practitioner1588032866
- Meredith Lindner, DOInternal Medicine Physician1942616826
Verify Elizabeth K. Nelligan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 044749Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% more Medicare Part D claims than the average family medicine physician in 2024
5,361 Medicare Part D claims for 575 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 55 claims were for opioids.
Most prescribed
- Atorvastatin Calcium449 claims
- Levothyroxine Sodium442 claims
- Amlodipine Besylate359 claims
- Losartan Potassium201 claims
- Lisinopril192 claims
- Metoprolol Succinate170 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): 97.3 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
- Mhs Primary Care, Inc.Essex, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elizabeth K. Nelligan among 958 family medicine physician records in Connecticut
Elizabeth K. Nelligan, M.D. is one of 958 family medicine physician records with a practice address in Connecticut. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.
- NPI issued2007 · 43% of these records are older, 48% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1999 · median 2009 among the 611 with a school on file
- Record last updated2017 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 family medicine physician records list a practice address in Essex
They are 4 of the 208 NPPES records with a practice address in Essex, and 958 family medicine physician records in Connecticut.
All 958 in Connecticut → Every provider in Essex → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Michael Baldwin, DOEssex, CT 064261104895382
- Louise Maloney, MDEssex, CT 064261801825799
- Thomas McDowell, MDEssex, CT 064261275015141
- Domenic Casablanca, M.D.East Hampton, CT 064241548227267
- Ana Garcia, D.O.East Hampton, CT 064241710418249
- Cathy Zack, MDEast Hampton, CT 064241003828435
- Theodore Bruno, MDDurham, CT 064221174068803
- John Carbone, MDDurham, CT 064221366487563
Common questions
What is Elizabeth K. Nelligan, M.D.'s NPI number?
Elizabeth K. Nelligan, M.D.'s National Provider Identifier (NPI) is 1174663884, issued on Feb 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth K. Nelligan, M.D. located?
The NPPES record lists a practice address at 147 Westbrook RD, Essex, CT, 06426. Phone: (860) 767-8265. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth K. Nelligan, M.D.'s license?
NPPES lists Connecticut license number 044749, 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 Elizabeth K. Nelligan, M.D. prescribe under Medicare Part D?
In 2024, Elizabeth K. Nelligan, M.D. had 5,361 Medicare Part D claims for 575 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Elizabeth K. Nelligan, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.3 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.