CONWAY LIEN M.D.
NPI 1336276450
Radiology - Diagnostic Neuroimaging in Stanford, CA

Active since February 27, 2007PECOS EnrolledAccepts Medicare Assignment
99.94/100
CMS Quality Rating
300 PASTEUR DR, STANFORD, CA 94305(650) 723-4000 Get Directions Write a Review

NPPES record last updated: April 8, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 8, 2024, Oct 27, 2016 (2 updates tracked since 2016).

About Conway Lien M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CONWAY LIEN M.D. (NPI 1336276450) is an individual diagnostic neuroimaging provider in Stanford, California, licensed in California (A76635) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, maintains a secondary practice location in San Jose, and is a graduate of Tufts University School Of Medicine (2000).

NPPES Registry Identity

NPI1336276450
Entity TypeIndividualMale
Primary Taxonomy2085D0003X
Provider Legal NameCONWAY LIENCredential: M.D.
Location Address300 PASTEUR DRStanford, CA 94305-2200
Mailing Address300 Pasteur DrStanford, CA 94305-2200 · (650) 723-4000
Sole ProprietorNo
Medical School CMSTufts University School Of MedicineGraduated 2000
Enumeration DateFebruary 27, 2007
Last NPPES UpdateApril 8, 20242 updates tracked since enumeration
NPPES CertifiedApril 8, 2024
✔ NPI 1336276450 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyRadiology · Diagnostic NeuroimagingAllopathic & Osteopathic Physicians
Taxonomy Code2085D0003X
License✔ Licensed in CA · A76635
Definition
A licensed physician, who has completed a residency program in Neurology, and who has additional training, experience, and competence in the standards of performance and interpretation of Magnetic Resonance Imaging (MRI / MRA) of the head, spine, and peripheral nerves, and Computed Tomography (CT) of the head and spine. Physicians are trained in the administration of contrast media and the recognition and treatment of adverse reactions to contrast media. Neuroimaging training encompasses thorough knowledge of clinical neurology, neurophysiology, neuroanatomy, neurochemistry, neuropharmacology, and dynamics of cerebrospinal fluid circulation. Physicians possess special expertise in the technical aspects and clinical applications of each of the modalities and techniques of neuroimaging.
Also ListedRadiology · NeuroradiologyTaxonomy 2085N0700X · License A76635 (CA)
Also ListedRadiology · Diagnostic RadiologyTaxonomy 2085R0202X · License A76635 (CA)
300 PASTEUR DR, Stanford, CA 94305

Secondary Practice Location 1

Location 11117 Grimley LnSan Jose, CA 95120-4223 · Phone (408) 826-4912

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Conway Lien M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2466494034
PECOS Enrollment IDI20050524000679, I20250502000776
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

9

Medicare enrollment records show Conway Lien reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mental Health (Including Community Mental Health Center)
231 GRANT AVENUE
Palo Alto, CA 94306
  • Reassigned Medicare billing, California enrollment
  • 2,460 clinicians in this Medicare group
Diagnostic Radiology
2425 SAMARITAN DR
San Jose, CA 95124
  • Reassigned Medicare billing, California enrollment
  • 181 clinicians in this Medicare group
Surgery
5725 W LAS POSITAS BLVD STE 200
Pleasanton, CA 94588
  • Reassigned Medicare billing, California enrollment
  • 678 clinicians in this Medicare group
Family Medicine
17615 MORO RD
Prunedale, CA 93907
  • Reassigned Medicare billing, California enrollment
  • 284 clinicians in this Medicare group
Diagnostic Radiology
250 CHERRY LN STE 116
Manteca, CA 95337
  • Reassigned Medicare billing, California and Hawaii enrollments
  • 47 clinicians in this Medicare group
General Acute Care Hospital
500 W. HOSPITAL RD.
French Camp, CA 95231
  • Reassigned Medicare billing, California enrollment
  • 534 clinicians in this Medicare group
Internal Medicine
500 HOSPITAL RD
French Camp, CA 95231
  • Reassigned Medicare billing, California enrollment
  • 512 clinicians in this Medicare group
Primary Care
10200 TRINITY PARKWAY, SUITE 102
Stockton, CA 95219
  • Reassigned Medicare billing, California enrollment
  • 221 clinicians in this Medicare group
Specialist
975 S FAIRMONT AVE
Lodi, CA 95240
  • Reassigned Medicare billing, California enrollment
  • 34 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 55

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
1,308 services1,097 patients
Ct scan head or brain without contrast 70450
A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
516 services502 patients
Ct scan of abdomen and pelvis without contrast 74176
A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.
226 services222 patients
Ct scan of abdomen and pelvis with contrast 74177
A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.
221 services219 patients
Ct scan of chest without contrast 71250
A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.
193 services190 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
156 services152 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

99.94/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality91.25
Improvement Activities40

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Gastroenterology)
300 PASTEUR DR, ALWAY BUILD M211, MC 5187
STANFORD, CA 94305
Radiology (Vascular & Interventional Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
STANFORD, CA 94305
Radiology (Diagnostic Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Nurse Practitioner
300 PASTEUR DR
STANFORD, CA 94305
Neurological Surgery
300 PASTEUR DR
STANFORD, CA 94305
Pathology (Anatomic Pathology & Clinical Pathology)
300 PASTEUR DR, LANE 235
STANFORD, CA 94305
Internal Medicine (Critical Care Medicine)
300 PASTEUR DR
STANFORD, CA 94305

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Conway Lien's NPI number?

The NPI number for Conway Lien is 1336276450. It was assigned to this individual provider in the NPPES registry on February 27, 2007.

Where is Conway Lien located?

Conway Lien practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.

What is Conway Lien's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Neuroimaging, with taxonomy code 2085D0003X.

Is Conway Lien enrolled in Medicare?

Yes. Conway Lien is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Conway Lien's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Conway Lien reassigns Medicare benefits to 9 organizations: County Of Santa Clara (Palo Alto, CA), Bay Imaging Consultants Medical Group Inc (San Jose, CA), Adventist Health Physicians Network (Pleasanton, CA), County Of Monterey (Prunedale, CA), Central Valley Imaging Medical Associates, Inc (Manteca, CA) and 4 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Conway Lien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Conway Lien was last updated on April 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.