NPPES file of Aug 9, 2026

Mark Swidler, MD

Hospice and Palliative Medicine (Internal Medicine) Physician · New Haven, CT

Mark Swidler, MD is a hospice and palliative medicine (internal medicine) physician with a practice address in New Haven, Connecticut, and NPI 1770501405, issued on Jul 18, 2006. Check the license (Connecticut 35788, as entered in NPPES) on the Connecticut Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1770501405
Name
Mark Swidler
Credential
MD
Primary taxonomy
Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
License number
35788 CT
Self-reported in NPPES; status is on the state search
Practice location
20 York St, New Haven, CT 06510
Phone
(203) 200-2725
Enumerated
Jul 18, 2006
Record last updated
May 19, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(203) 200-2099
Medicaid ID
02532781 NY
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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8 nearest hospice and palliative medicine (internal medicine) physician records → All 29 in Connecticut → Look up another NPI →

Also registered at 20 York St

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

  1. Cyrena Abbasi, MDStudent in an Organized Health Care Education/Training Program1609703289
  2. Ali Abboud, MD, MBAStudent in an Organized Health Care Education/Training Program1942943097
  3. Basil Abdalla, MDStudent in an Organized Health Care Education/Training Program1154905057
  4. Jasmina AbdallaStudent in an Organized Health Care Education/Training Program1700638590
  5. Sarah AbdallahPsychiatry Physician1740800952
  6. Usama Abdelghany, PHARM DOncology Pharmacist1548827843

Verify Mark Swidler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 35788    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.

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Mark Swidler among 29 hospice and palliative medicine (internal medicine) physician records in Connecticut

Mark Swidler, MD is one of 29 hospice and palliative medicine (internal medicine) physician records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 59% newer
  • In a Medicare fileNo · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2016 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospice and Palliative Medicine (Internal Medicine) Physician providers in Connecticut

There are 29 hospice and palliative medicine (internal medicine) physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 29 in Connecticut → Every provider in New Haven → Hospice and Palliative Medicine (Internal Medicine) Physician nationwide →

The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes

  1. Catherine Adams, MDNew Haven, CT 065101851666192
  2. Alexander Mbewe, MDNew Haven, CT 065101811053812
  3. Laura Morrison, MDNew Haven, CT 065101225118631
  4. Elizabeth Prsic, M.D.New Haven, CT 065101376837930
  5. Andrew Putnam, MDNew Haven, CT 065101154307866
  6. Vinay RaoNew Haven, CT 065101922441070
  7. Richard Sorcinelli, M.D.Orange, CT 064771568907095
  8. Clare Cherney, MDMilford, CT 064601093896904

Common questions

What is Mark Swidler, MD's NPI number?

Mark Swidler, MD's National Provider Identifier (NPI) is 1770501405, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Swidler, MD located?

The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 200-2725. Providers update this record themselves, so call before visiting.

How can I verify Mark Swidler, MD's license?

NPPES lists Connecticut license number 35788, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.