Exosome Diagnostics, Inc.
NPI 1538543731 · Clinical Medical Laboratory · Waltham, MA
Enrolled with Medicare as Part B Supplier - Independent Clinical Laboratory · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Exosome Diagnostics, Inc. is a Clinical Medical Laboratory organization in Waltham, MA (NPI 1538543731).
Provider details
- NPI number
- 1538543731
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Organization subpart
- No
- Authorized official
- William Kelly, Chief Financial Officer(617) 588-0522
Specialties & taxonomies
Laboratories
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 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
15,700 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) |
|---|---|---|
| Test for Detecting Genes Associated With Prostate Cancer in Urine0005U | 15,700 | $744 |
Typical Medicare-allowed amounts for these services range $744–$744 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-07-17
- Last updated
- 2022-07-21
Frequently asked questions
- What is Exosome Diagnostics, Inc.'s NPI number?
- Exosome Diagnostics, Inc.'s National Provider Identifier (NPI) is 1538543731, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Exosome Diagnostics, Inc.?
- Exosome Diagnostics, Inc. is classified in the NPPES registry as Clinical Medical Laboratory (Laboratories).
- Where is Exosome Diagnostics, Inc. located?
- Exosome Diagnostics, Inc.'s practice location on file with NPPES is 266 2nd Ave # 200, Waltham, MA 02451-1166.
- What is Exosome Diagnostics, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Exosome Diagnostics, Inc. is (617) 588-0500.
- Does Exosome Diagnostics, Inc. accept Medicare?
- Exosome Diagnostics, Inc. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Exosome Diagnostics, Inc.?
- The authorized official listed on Exosome Diagnostics, Inc.'s NPPES record is William Kelly, Chief Financial Officer. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Exosome Diagnostics, Inc.'s NPI active?
- Yes — Exosome Diagnostics, Inc.'s NPI (1538543731) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.