NPPES file of Aug 9, 2026

Caitlin Loomis, MD

Neurology Physician · New Haven, CT

Caitlin Loomis, MD is a neurology physician with a practice address in New Haven, Connecticut, and NPI 1184868069, issued on Apr 23, 2009. Check the license (Connecticut 52819, 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
1184868069
Name
Caitlin Loomis
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
52819 CT
Self-reported in NPPES; status is on the state search
Practice location
15 York St, New Haven, CT 06520
Phone
(203) 737-1057
Enumerated
Apr 23, 2009
Record last updated
Apr 29, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(203) 737-4382
Medicare enrollment
Enrolled (PECOS I20140912000521); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 2009
Telehealth
Offers telehealth (CMS)
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 15 York St

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

  1. Justine Cormier, M.D.Neurology Physician1427436294
  2. Nannette Thomas, APRNAdult Health Nurse Practitioner1780918599

Verify Caitlin Loomis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 52819
    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.

84% fewer Medicare Part D claims than the average neurology physician in 2024

222 Medicare Part D claims for 69 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Caitlin Loomis222
  2. Specialty average1,370

Most prescribed

  1. Gabapentin37 claims
  2. Baclofen19 claims
  3. Duloxetine Hcl15 claims
  4. Nurtec Odt15 claims
  5. Levetiracetam11 claims
  6. Nortriptyline Hcl11 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): 73.6 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 score75.8
  2. Costout of 100 · 30%51.4
  3. Promoting interoperabilityout of 100 · 25%74.0
  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).

Industry payments in 2024: $32.98

1 payment: food and beverage; the largest payer was Argenx US, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Caitlin Loomis$32.98
  2. Specialty average$8,318.07

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Yale UniversityNew Haven, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Caitlin Loomis among 345 neurology physician records in Connecticut

Caitlin Loomis, MD is one of 345 neurology physician records with a practice address in Connecticut. 83% 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 49% of them.

  • NPI issued2009 · 49% of these records are older, 46% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2009 · median 2009 among the 216 with a school on file
  • Record last updated2015 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

121 neurology physician records list a practice address in New Haven

They are 121 of the 9,793 NPPES records with a practice address in New Haven, and 345 neurology physician records in Connecticut.

The 8 neurology physician records with the nearest ZIP codes

  1. Zachary Corbin, M.D., M.H.S.New Haven, CT 065201730403486
  2. Justine Cormier, M.D.New Haven, CT 065201427436294
  3. Naila Makhani, MDNew Haven, CT 065201336580141
  4. Lindsay McAlpine, MDNew Haven, CT 065201982132114
  5. Mary Barden, MDNew Haven, CT 065191568999480
  6. Aditya BodduNew Haven, CT 065191346691409
  7. Jeffrey Dewey, M.D.New Haven, CT 065191619315991
  8. Carolyn Fredericks, M.D.New Haven, CT 065191285946061

Common questions

What is Caitlin Loomis, MD's NPI number?

Caitlin Loomis, MD's National Provider Identifier (NPI) is 1184868069, issued on Apr 23, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Caitlin Loomis, MD located?

The NPPES record lists a practice address at 15 York St, New Haven, CT, 06520. Phone: (203) 737-1057. Providers update this record themselves, so call before visiting.

How can I verify Caitlin Loomis, MD's license?

NPPES lists Connecticut license number 52819, 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 Caitlin Loomis, MD prescribe under Medicare Part D?

In 2024, Caitlin Loomis, MD had 222 Medicare Part D claims for 69 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is Caitlin Loomis, MD's MIPS final score?

The 2023 MIPS final score is 73.6 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.