Justin Gregg, M.D.
NPI 1710208939 · Pulmonary Disease Physician · Greenville, SC
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Justin Gregg, M.D. is a Pulmonary Disease Physician provider in Greenville, SC (NPI 1710208939).
Provider details
- NPI number
- 1710208939
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 39944 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
268 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 136 | $200 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 49 | $111 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 34 | $74 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 21 | $162 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 16 | $13 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 12 | $41 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$78 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-06-22
- Last updated
- 2026-01-13
- Certified
- 2026-01-13
Frequently asked questions
- What is Justin Gregg's NPI number?
- Justin Gregg's National Provider Identifier (NPI) is 1710208939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Gregg's specialty?
- Justin Gregg is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Justin Gregg located?
- Justin Gregg's practice location on file with NPPES is 200 Patewood Dr, Greenville, SC 29615-3593.
- What is Justin Gregg's phone number?
- The practice phone number listed in the NPPES registry for Justin Gregg is (864) 454-4200.
- Does Justin Gregg accept Medicare?
- Justin Gregg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Justin Gregg's NPI active?
- Yes — Justin Gregg's NPI (1710208939) is active in the NPPES registry as of the last update on 2026-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.