Hayden Pacl
Internal Medicine Physician · Guilford, CT
Hayden Pacl is an internal medicine physician with a practice address in Guilford, Connecticut, and NPI 1598451908, issued on Apr 18, 2023. Check the license (Connecticut 1.085825, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Hayden Pacl
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 1.085825 CT
Self-reported in NPPES; status is on the state search - Practice location
- 385 Church St Ste 101, Guilford, CT 06437
- Phone
- (203) 453-0361
- Enumerated
- Apr 18, 2023
- Record last updated
- Jun 20, 2026
- Fax
- (203) 453-8510
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 385 Church St Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carl Violano, MDFamily Medicine Physician1518151596
Verify Hayden Pacl in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 1.085825Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
14 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Hayden Pacl among 2,623 internal medicine physician records in Connecticut
Hayden Pacl 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 2023, is newer than 98% of them.
- NPI issued2023 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2026 · 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).
16 internal medicine physician records list a practice address in Guilford
They are 16 of the 504 NPPES records with a practice address in Guilford, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Guilford → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joseph Balsamo, M.D.Guilford, CT 064371487650222
- Donna Criscenzo, M.D.Guilford, CT 064371225036528
- Edward Dill, M.D.Guilford, CT 064371700886587
- Charles Glass, M.D.Guilford, CT 064371184613705
- Charles Hollander, MDGuilford, CT 064371902960529
- Jodi Indes, M.D.Guilford, CT 064371871566638
- Fraser LawrenceGuilford, CT 064371295084770
- Kathryn Mazza, D.O.Guilford, CT 064371497196471
Common questions
What is Hayden Pacl's NPI number?
Hayden Pacl's National Provider Identifier (NPI) is 1598451908, issued on Apr 18, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Hayden Pacl located?
The NPPES record lists a practice address at 385 Church St Ste 101, Guilford, CT, 06437. Phone: (203) 453-0361. Providers update this record themselves, so call before visiting.
How can I verify Hayden Pacl's license?
NPPES lists Connecticut license number 1.085825, 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 Hayden Pacl prescribe under Medicare Part D?
In 2024, Hayden Pacl had 14 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.