Justin Quock, M.D., F.A.C.P.
NPI 1699792663 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Justin Quock, M.D., F.A.C.P. is a Internal Medicine Physician provider in San Francisco, CA (NPI 1699792663).
Provider details
- NPI number
- 1699792663
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., F.A.C.P.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A55916 (CA)
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 tenure25% of score
19 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
1,754 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 568 | $6 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 491 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 391 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 53 | $13 |
| Manual Urinalysis Test With Examination Using Microscope, Automated81001 | 41 | $3 |
| Red Blood Count, Automated Test85045 | 32 | $1 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 75 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 278 | 78 |
| Losartan Potassium | 227 | 65 |
| Amlodipine Besylate | 214 | 61 |
| Metformin Hcl | 144 | 38 |
| Anastrozole | 102 | 31 |
| Hydroxyurea | 97 | 26 |
| Lovastatin | 84 | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$137 across 2 records (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
- 2006-07-16
- Last updated
- 2019-09-03
Frequently asked questions
- What is Justin Quock's NPI number?
- Justin Quock's National Provider Identifier (NPI) is 1699792663, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Quock's specialty?
- Justin Quock is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Justin Quock located?
- Justin Quock's practice location on file with NPPES is 929 Clay St, San Francisco, CA 94108-1569.
- What is Justin Quock's phone number?
- The practice phone number listed in the NPPES registry for Justin Quock is (415) 398-5100.
- Does Justin Quock accept Medicare?
- Justin Quock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Justin Quock's NPI active?
- Yes — Justin Quock's NPI (1699792663) is active in the NPPES registry as of the last update on 2019-09-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.