NPPES file of Aug 9, 2026

Cynthia Lin, MD

Nephrology Physician · Mountain View, CA

Cynthia Lin, MD is a nephrology physician with a practice address in Mountain View, California, and NPI 1134106388, issued on Dec 29, 2005. Check the license (California A66443, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134106388
Name
Cynthia Lin
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
A66443 CA
Self-reported in NPPES; status is on the state search
Practice location
515 South Dr Ste 12, Mountain View, CA 94040
Phone
(408) 871-5252
Enumerated
Dec 29, 2005
Record last updated
Jan 17, 2025
Fax
(650) 643-0033
Medicare enrollment
Enrolled (PECOS I20090219000410); accepts Medicare assignment
Medical or professional school
University Of Texas Southwestern Medical School At Dallas, 1995
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 515 South Dr Ste 12

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Taylor Miller, PTPhysical Therapist1467422634

Verify Cynthia Lin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A66443
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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69% more Medicare Part D claims than the average nephrology physician in 2024

2,478 Medicare Part D claims for 271 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 21 claims were for opioids.

  1. Cynthia Lin2,478
  2. Specialty average1,465

Most prescribed

  1. Amlodipine Besylate185 claims
  2. Losartan Potassium185 claims
  3. Atorvastatin Calcium171 claims
  4. Furosemide139 claims
  5. Metoprolol Succinate95 claims
  6. Lisinopril83 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $200.20

10 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Cynthia Lin$200.20
  2. Specialty average$3,091.37

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. EL Camino Health Medical Network LLCMountain View, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Cynthia Lin among 1,468 nephrology physician records in California

Cynthia Lin, MD is one of 1,468 nephrology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 90% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated1995 · median 2001 among the 1,128 with a school on file
  • Record last updated2025 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California.

The 8 nephrology physician records with the nearest ZIP codes

  1. Ian Lam, MDMountain View, CA 940401518169580
  2. Patrick McGlynn, MDMountain View, CA 940401124317540
  3. Mitra Sorooshian, M.D.Mountain View, CA 940401902912132
  4. George Ting, MDMountain View, CA 940401104803097
  5. Shahrzad Zarghamee, MDMountain View, CA 940401689651820
  6. Brigitte Schiller-Moran, M.D.Mountain View, CA 940411205989639
  7. Vandana Mathur, M.D.Woodside, CA 940621699078915
  8. Phillip Ng, MDRedwood City, CA 940621295766178

Common questions

What is Cynthia Lin, MD's NPI number?

Cynthia Lin, MD's National Provider Identifier (NPI) is 1134106388, issued on Dec 29, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Cynthia Lin, MD located?

The NPPES record lists a practice address at 515 South Dr Ste 12, Mountain View, CA, 94040. Phone: (408) 871-5252. Providers update this record themselves, so call before visiting.

How can I verify Cynthia Lin, MD's license?

NPPES lists California license number A66443, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Cynthia Lin, MD prescribe under Medicare Part D?

In 2024, Cynthia Lin, MD had 2,478 Medicare Part D claims for 271 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.