Lan Quang, M.D.
NPI 1437354347 · Internal Medicine Physician · Stockton, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lan Quang, M.D. is a Internal Medicine Physician provider in Stockton, CA (NPI 1437354347).
Provider details
- NPI number
- 1437354347
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MT191351 (PA)
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
1,117 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) |
|---|---|---|
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 442 | $335 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 235 | $82 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 189 | $111 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 132 | $213 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 51 | $74 |
| Hemodialysis Procedure With Physician Evaluation90935 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 200 | 78 |
| Empagliflozinbrand: Jardiance | 191 | 58 |
| Furosemide | 182 | 81 |
| Dapagliflozin Propanediolbrand: Farxiga | 178 | 51 |
| Amlodipine Besylate | 175 | 67 |
| Metformin Hcl | 100 | 38 |
| Hydralazine Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,425 across 165 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
- 2007-06-19
- Last updated
- 2017-02-02
Frequently asked questions
- What is Lan Quang's NPI number?
- Lan Quang's National Provider Identifier (NPI) is 1437354347, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lan Quang's specialty?
- Lan Quang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lan Quang located?
- Lan Quang's practice location on file with NPPES is 1525 N El Dorado St, Stockton, CA 95204-5932.
- What is Lan Quang's phone number?
- The practice phone number listed in the NPPES registry for Lan Quang is (209) 465-5107.
- Does Lan Quang accept Medicare?
- Lan Quang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lan Quang's NPI active?
- Yes — Lan Quang's NPI (1437354347) is active in the NPPES registry as of the last update on 2017-02-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.