Genedx LLC
NPI 1487632998 · Clinical Medical Laboratory · Gaithersburg, MD
Enrolled with Medicare as Part B Supplier - Independent Clinical Laboratory · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Genedx LLC is a Clinical Medical Laboratory organization in Gaithersburg, MD (NPI 1487632998).
Provider details
- NPI number
- 1487632998
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Organization subpart
- No
- Authorized official
- Christine Mcgrogan, Payor Credentialing Specialist(240) 658-0686
- License
- 870020
Specialties & taxonomies
Laboratories
Other Service Providers
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
5,649 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) |
|---|---|---|
| Gene Analysis (breast and Related Cancers), Duplication Or Deletion Variants81433 | 989 | $430 |
| Test for Detecting Genes Associated With Inherited Breast Cancer-Related Disorders81432 | 987 | $665 |
| Test for Detecting Genes Associated With Disease, Genomic Sequence, Must Include Sequence Analysis of Entire Mitochondrial Genome81460 | 433 | $1,247 |
| Test for Detecting Genes Associated With Disease, Whole Mitochondrial Genome81465 | 432 | $910 |
| Gene Analysis Panel for Hereditary Disorders of the Peripheral Nervous System81448 | 239 | $568 |
| Test for Detecting Genes Associated With Colon Cancer, Genomic Sequence Analysis Panel, at Least 10 Genes81435 |
Practice location
Mailing address
Other names (DBA / former)
- Former legal business name
- Genedx, Inc.
Registry dates
- Enumerated
- 2006-01-04
- Last updated
- 2026-01-27
- Certified
- 2026-01-27
Frequently asked questions
- What is Genedx LLC's NPI number?
- Genedx LLC's National Provider Identifier (NPI) is 1487632998, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Genedx LLC?
- Genedx LLC is classified in the NPPES registry as Clinical Medical Laboratory (Laboratories).
- Where is Genedx LLC located?
- Genedx LLC's practice location on file with NPPES is 205 & 207 Perry Pkwy, Gaithersburg, MD 20877-2142.
- What is Genedx LLC's phone number?
- The practice phone number listed in the NPPES registry for Genedx LLC is (301) 519-2100.
- Does Genedx LLC accept Medicare?
- Genedx LLC 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 Genedx LLC?
- The authorized official listed on Genedx LLC's NPPES record is Christine Mcgrogan, Payor Credentialing Specialist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Genedx LLC's NPI active?
- Yes — Genedx LLC's NPI (1487632998) is active in the NPPES registry as of the last update on 2026-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.