Holley Dey, M.D.
NPI 1700860699 · Diagnostic Radiology Physician · Wallingford, CT
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Holley Dey, M.D. is a Diagnostic Radiology Physician provider in Wallingford, CT (NPI 1700860699).
Provider details
- NPI number
- 1700860699
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- License
- 025655 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
376 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Screening Mammography77067 | 105 | $131 |
| Screening 3d Breast Mammography77063 | 104 | $53 |
| Nuclear Medicine Study From Skull Base to Mid-Thigh With Ct Scan78815 | 31 | $111 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 21 | $29 |
| Nuclear Medicine Studies of Heart Muscle at Rest and With Stress and Spect78452 | 20 | $74 |
| Nuclear Medicine Study, Spect Imaging, 1 Area Or Single Acquisition, Single Day Imaging78803 | 19 | $370 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-04
- Last updated
- 2007-07-08
Frequently asked questions
- What is Holley Dey's NPI number?
- Holley Dey's National Provider Identifier (NPI) is 1700860699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Holley Dey's specialty?
- Holley Dey is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Holley Dey located?
- Holley Dey's practice location on file with NPPES is 97 Barnes Rd, Wallingford, CT 06492-1885.
- What is Holley Dey's phone number?
- The practice phone number listed in the NPPES registry for Holley Dey is (203) 949-2700.
- Does Holley Dey accept Medicare?
- Holley Dey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Holley Dey's NPI active?
- Yes — Holley Dey's NPI (1700860699) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.