Cynthia Lin, MD
NPI 1134106388 · Nephrology Physician · Mountain View, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cynthia Lin, MD is a Nephrology Physician provider in Mountain View, CA (NPI 1134106388).
Provider details
- NPI number
- 1134106388
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A66443 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
2,069 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 550 | $123 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 412 | $133 |
| Dialysis Services, Per Day, Less Than Full Month Service (20 Years Or Older)90970 | 399 | $11 |
| Hemodialysis Procedure With Physician Evaluation90935 | 133 | $79 |
| Dialysis Services, 1 Physician Visit Per Month (20 Years Or Older)90962 | 113 | $236 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 84 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 50 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 185 | 52 |
| Amlodipine Besylate | 185 | 56 |
| Atorvastatin Calcium | 171 | 50 |
| Furosemide | 139 | 41 |
| Metoprolol Succinate | 95 | 29 |
| Lisinopril | 83 | 23 |
| Allopurinol | 78 | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$200 across 10 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
- 2005-12-29
- Last updated
- 2025-01-17
- Certified
- 2025-01-17
Frequently asked questions
- What is Cynthia Lin's NPI number?
- Cynthia Lin's National Provider Identifier (NPI) is 1134106388, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cynthia Lin's specialty?
- Cynthia Lin is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Cynthia Lin located?
- Cynthia Lin's practice location on file with NPPES is 515 South Dr Ste 12, Mountain View, CA 94040-4209.
- What is Cynthia Lin's phone number?
- The practice phone number listed in the NPPES registry for Cynthia Lin is (408) 871-5252.
- Does Cynthia Lin accept Medicare?
- Cynthia Lin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cynthia Lin's NPI active?
- Yes — Cynthia Lin's NPI (1134106388) is active in the NPPES registry as of the last update on 2025-01-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.