Timothy Chamberlain, MD
NPI 1942235353 · Anatomic Pathology & Clinical Pathology Physician · Green Bay, WI
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Chamberlain, MD is a Anatomic Pathology & Clinical Pathology Physician provider in Green Bay, WI (NPI 1942235353).
Provider details
- NPI number
- 1942235353
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 37792 (WI)
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
19 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
694 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 | 428 | $34 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 72 | $26 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 61 | $76 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 34 | $32 |
| Pathology Examination of Tissue Using a Microscope, Moderately Low Complexity88304 | 33 | $10 |
| Pathology Examination of Specimen During Surgery, First Tissue Block88331 | 24 | $57 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-12
- Last updated
- 2021-12-09
- Certified
- 2021-12-09
Frequently asked questions
- What is Timothy Chamberlain's NPI number?
- Timothy Chamberlain's National Provider Identifier (NPI) is 1942235353, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Chamberlain's specialty?
- Timothy Chamberlain is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Chamberlain located?
- Timothy Chamberlain's practice location on file with NPPES is 2845 Greenbrier Rd, Green Bay, WI 54311-6519.
- What is Timothy Chamberlain's phone number?
- The practice phone number listed in the NPPES registry for Timothy Chamberlain is (920) 288-4740.
- Does Timothy Chamberlain accept Medicare?
- Timothy Chamberlain is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Chamberlain's NPI active?
- Yes — Timothy Chamberlain's NPI (1942235353) is active in the NPPES registry as of the last update on 2021-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.