DAVID AUGUSTUS FIELLIN MD
NPI 1194700666
Internal Medicine in New Haven, CT

Active since December 07, 2005PECOS EnrolledAccepts Medicare Assignment
73.56/100
CMS Quality Rating
789 HOWARD AVE, YNHH, NEW HAVEN, CT 06519(203) 688-2471(203) 688-4516 Get Directions Write a Review

NPPES record last updated: February 6, 2013. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About David Augustus Fiellin Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DAVID AUGUSTUS FIELLIN MD (NPI 1194700666) is an individual internal medicine provider in New Haven, Connecticut, licensed in Connecticut (033601) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of Emory University School Of Medicine (1991).

NPPES Registry Identity

NPI1194700666
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDAVID AUGUSTUS FIELLINCredential: MD
Location Address789 HOWARD AVE, YNHHNew Haven, CT 06519-1304
Mailing Address300 George St, 6th FloorNew Haven, CT 06511-6624 · (203) 785-4216 · Fax (203) 785-6414
Fax(203) 688-4516
Sole ProprietorNo
Medical School CMSEmory University School Of MedicineGraduated 1991
Enumeration DateDecember 7, 2005
Last NPPES UpdateFebruary 6, 2013
NPI 1194700666 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in CT · 033601
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
789 HOWARD AVE, New Haven, CT 06519

Other Identifiers 3

Medicaid001336016CT
Medicare PIN110005321CT
Medicare UPINF81088

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

David Augustus Fiellin Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6103979398
PECOS Enrollment IDI20090805000716
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06519 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

73.56/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality75.84
Promoting Interoperability74
Improvement Activities40
Cost51.43

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Gastroenterology)
789 HOWARD AVE, DANA BUILDING - 3RD FLOOR
NEW HAVEN, CT 06519
Pediatrics (Pediatric Emergency Medicine)
789 HOWARD AVE, YNHH PEDIATRICS
NEW HAVEN, CT 06519
Internal Medicine (Interventional Cardiology)
789 HOWARD AVE
NEW HAVEN, CT 06519
Internal Medicine (Interventional Cardiology)
789 HOWARD AVE, YNHH,
NEW HAVEN, CT 06519
Internal Medicine (Infectious Disease)
789 HOWARD AVE, DANA BUILDING - 3RD FLOOR
NEW HAVEN, CT 06519
Radiology (Diagnostic Radiology)
789 HOWARD AVE, TOMPKINS EAST BUILDING ROOM 2-230
NEW HAVEN, CT 06519
Nurse Practitioner (Adult Health)
789 HOWARD AVE
NEW HAVEN, CT 06519
Pharmacist
789 HOWARD AVE
NEW HAVEN, CT 06519

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is David Fiellin's NPI number?

The NPI number for David Fiellin is 1194700666. It was assigned to this individual provider in the NPPES registry on December 7, 2005.

Where is David Fiellin located?

David Fiellin practices at 789 Howard Ave Ynhh, New Haven, CT 06519. The listed phone number is (203) 688-2471.

What is David Fiellin's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is David Fiellin enrolled in Medicare?

Yes. David Fiellin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for David Fiellin was last updated on February 6, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.