Tong Sun, M.D.
NPI 1972999548 · Anatomic Pathology & Clinical Pathology Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tong Sun, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in New Haven, CT (NPI 1972999548).
Provider details
- NPI number
- 1972999548
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 264359 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
638 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 205 | $37 |
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 107 | $27 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 106 | $28 |
| Evaluation of Fine Needle Aspirate With Interpretation and Report88173 | 70 | $69 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 45 | $35 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 37 | $81 |
Practice location
Mailing address
Additional practice locations (1)
- 55 Lake Ave NWorcester, MA 01655-0002Phone: (508) 334-1000
Registry dates
- Enumerated
- 2015-04-10
- Last updated
- 2020-07-13
- Certified
- 2020-07-13
Frequently asked questions
- What is Tong Sun's NPI number?
- Tong Sun's National Provider Identifier (NPI) is 1972999548, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tong Sun's specialty?
- Tong Sun is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Tong Sun located?
- Tong Sun's practice location on file with NPPES is 310 Cedar St, New Haven, CT 06510-3218.
- What is Tong Sun's phone number?
- The practice phone number listed in the NPPES registry for Tong Sun is (203) 785-3624.
- Does Tong Sun accept Medicare?
- Tong Sun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tong Sun's NPI active?
- Yes — Tong Sun's NPI (1972999548) is active in the NPPES registry as of the last update on 2020-07-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.