Frederick David Haeseler, MD
Internal Medicine Physician · New Haven, CT
Frederick David Haeseler, MD is an internal medicine physician with a practice address in New Haven, Connecticut, and NPI 1295862084, issued on Feb 27, 2007. Check the license (Connecticut 017832, as entered in NPPES) on the Connecticut Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Frederick David Haeseler
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 017832 CT
Self-reported in NPPES; status is on the state search - Practice location
- 367 Cedar St, New Haven, CT 06510
- Phone
- (203) 785-7082
- Enumerated
- Feb 27, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (203) 737-4199
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
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Verify Frederick David Haeseler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 017832Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Frederick David Haeseler among 2,623 internal medicine physician records in Connecticut
Frederick David Haeseler, MD 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 not. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 44% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2007 · 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).
329 internal medicine physician records list a practice address in New Haven
They are 329 of the 9,793 NPPES records with a practice address in New Haven, and 2,623 internal medicine physician records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,623 in Connecticut → Every provider in New Haven → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- William Becker, M.D.New Haven, CT 065101154427656
- William Crede, MDNew Haven, CT 065101760455984
- Robert Gifford, M.D.New Haven, CT 065101407982242
- Peter Herbert, MDNew Haven, CT 065101033191465
- Rajlakshmi Krishnamurthy, MDNew Haven, CT 065101568487346
- Chandrika Kumar, M.D.New Haven, CT 065101386645448
- Frank Mongillo, MDNew Haven, CT 065101811917289
- Anika Murray, M.D.New Haven, CT 065101760544332
Common questions
What is Frederick David Haeseler, MD's NPI number?
Frederick David Haeseler, MD's National Provider Identifier (NPI) is 1295862084, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Frederick David Haeseler, MD located?
The NPPES record lists a practice address at 367 Cedar St, New Haven, CT, 06510. Phone: (203) 785-7082. Providers update this record themselves, so call before visiting.
How can I verify Frederick David Haeseler, MD's license?
NPPES lists Connecticut license number 017832, 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.
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.