MR. ALEXANDER HUYNH LAM
NPI 1316231780
Radiology - Vascular & Interventional Radiology in San Francisco, CA

Q: What is Alexander Lam's NPI number?

The NPI number for Alexander Lam is 1316231780. It was assigned to this individual provider in the NPPES registry on June 2, 2011. The provider is also known as Mr. Alex Huynh Lam.

Q: What is Alexander Lam's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Vascular & Interventional Radiology, with taxonomy code 2085R0204X.

Q: When was this NPI record last updated?

The NPPES record for Alexander Lam was last updated on January 27, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since June 02, 2011PECOS EnrolledAccepts Medicare Assignment

74.46/100

CMS Quality Rating

505 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 353-2573 Get Directions Write a Review

NPPES record last updated: January 27, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 27, 2020, Sep 25, 2018 (2 updates tracked since 2018).

On this page

About Mr. Alexander Huynh Lam NPPES

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

MR. ALEXANDER HUYNH LAM (NPI 1316231780) is an individual vascular & interventional radiology provider in San Francisco, California, licensed in California (A133408) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS and is a graduate of University Of California, Davis School Of Medicine (2013).

NPPES Registry Identity

NPI1316231780

Entity TypeIndividualMale

Primary Taxonomy2085R0204X

Provider Legal NameMR. ALEXANDER HUYNH LAM

Location Address505 PARNASSUS AVESan Francisco, CA 94143-2204

Mailing Address505 Parnassus AveSan Francisco, CA 94143-2204 · (415) 353-2573

Phone(415) 353-2573

Sole ProprietorNo

Medical School CMSUniversity Of California, Davis School Of MedicineGraduated 2013

Enumeration DateJune 2, 2011

Last NPPES UpdateJanuary 27, 20202 updates tracked since enumeration

✔ NPI 1316231780 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Vascular & Interventional RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0204X

License✔ Licensed in CA · A133408

Definition

A radiologist who diagnoses and treats diseases by various radiologic imaging modalities. These include fluoroscopy, digital radiography, computed tomography, sonography and magnetic resonance imaging.

505 PARNASSUS AVE, San Francisco, CA 94143

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Other Names 1

Other Name (5)Mr. Alex Huynh Lam

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

Mr. Alexander Huynh Lam 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 ID6507150901

PECOS Enrollment IDI20190719002476

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

Medicare enrollment records show Alexander Lam reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of California San Francisco

Same address

Surgery

400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143

Reassigned Medicare billing, California enrollment
5,645 clinicians in this Medicare group

NPI 1346329380 (415) 353-2161

Ucsf Medical Group Business Services

Same address

Internal Medicine

400 PARNASSUS AVE
San Francisco, CA 94122

Reassigned Medicare billing, California enrollment
5,544 clinicians in this Medicare group

NPI 1477624104 (415) 353-2808

Alameda Health System

11 mi

Clinic/Center

501 S SHORE CTR W, SUITE A-F
Alameda, CA 94501

Reassigned Medicare billing, California enrollment
900 clinicians in this Medicare group

NPI 1124446158 (510) 814-4630

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 20

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.

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

115 services110 patients

Drainage of fluid from abdominal cavity using imaging guidance 49083

This procedure involves removing excess fluid from your abdominal cavity, which can relieve discomfort. A specialist uses imaging technology to guide a thin needle into the right spot. The fluid is then drained out safely.

60 services24 patients

Fluoroscopic guidance for insertion or removal of central vein access device 77001

Fluoroscopic guidance for central vein access device insertion or removal is a procedure where a special X-ray, called a fluoroscope, is used to help accurately place or remove a device in a central vein. This device aids in delivering medications or collecting blood samples.

57 services57 patients

Ultrasonic guidance for blood vessel access 76937

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

55 services53 patients

Review by radiologist of image for replacement of stomach or large bowel tube 75984

This procedure involves a radiologist examining images to assess the placement of a tube in your stomach or large bowel. The tube helps with digestion or removal of waste. The radiologist's review ensures the tube is correctly positioned for your safety and comfort.

23 services21 patients

Review by radiologist of ct guidance for needle placement 77012

This process involves a radiologist examining CT scan images to accurately guide a needle's placement within the body. This technique is often used for biopsies or treatments, ensuring precision and safety.

23 services22 patients

Insertion of central venous tube with port (5 years or older) 36561

A central venous tube with port is a small, flexible tube inserted into a large vein, usually in the chest. It allows for easy administration of medication, fluids, or blood products over a long period. A port is attached under the skin for easy access. It's safe for individuals aged 5 and above.

21 services21 patients

Exchange of abdominal cavity drainage tube using imaging guidance 49423

This is a procedure where your existing abdominal drainage tube will be replaced under imaging guidance. This guidance helps ensure accurate placement and minimizes complications. It's done to maintain effective drainage of fluids from your abdomen.

21 services19 patients

Aspiration of fluid from chest cavity using imaging guidance 32555

This procedure, known as a thoracentesis, involves removing fluid from the space between the lungs and chest wall, called the pleural space. It's performed under imaging guidance to ensure precision. It can help diagnose conditions or relieve symptoms like shortness of breath.

18 services12 patients

Replacement of kidney drainage tube using imaging guidance with review by radiologist 50435

This procedure involves replacing an existing kidney drainage tube. Using imaging technology, a radiologist precisely guides the process to ensure accuracy. This helps drain excess fluid from kidneys, improving their function and your comfort.

18 services15 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

17 services13 patients

Insertion of non-tunneled central venous tube for infusion (5 years or older) 36556

This procedure involves placing a thin tube into a large vein, usually in the neck or chest, to administer medication or fluids. It's done under local anesthesia to minimize discomfort. It's a standard, safe procedure for individuals aged 5 and above.

15 services15 patients

Insertion of tunneled central venous tube for infusion (5 years or older) 36558

The insertion of a tunneled central venous tube is a procedure where a thin, flexible tube is placed into a large vein, usually in the neck or chest. This tube allows healthcare providers to give medications, fluids, or nutrients directly into your bloodstream over a longer period.

14 services14 patients

Removal of tunneled central venous tube 36589

A tunneled central venous tube removal is a procedure to take out a long, thin tube that was previously placed in a large vein in your body. This tube helps deliver medication or nutrition. The removal is usually quick and done under local anesthesia.

14 services14 patients

Replacement of liver duct drainage tube using imaging guidance with review by radiologist 47536

This procedure involves replacing a liver duct drainage tube, which helps remove bile from your liver. A radiologist uses imaging technology to guide the process, ensuring accurate placement of the new tube. They will also review the results for precision.

14 services11 patients

Insertion of stomach tube using fluoroscopic guidance with contrast 49440

This is a procedure where a tube is inserted into your stomach to assist with digestion or removal of substances. It's done under fluoroscopic guidance, a type of imaging that allows real-time viewing. Contrast dye is used to enhance the visibility of structures.

14 services14 patients

Ct scan of blood vessels of abdomen and pelvis with contrast 74174

A CT scan of the abdomen and pelvis with contrast is a medical imaging procedure. A special dye, called contrast, is used to make blood vessels more visible. The scan produces detailed images of your abdomen and pelvis, helping doctors to diagnose conditions or plan treatments.

13 services13 patients

Insertion of tube for infusion with imaging guidance and review by radiologist, patient 5 years or older 36573

This procedure involves placing a tube into a vein for medication or fluid delivery. Imaging guidance helps ensure correct placement, while a radiologist reviews the process for safety. It's suitable for patients aged 5 and above.

12 services12 patients

Insertion of vena cava filter with review by radiologist 37191

A vena cava filter is a small device placed in your body's largest vein to prevent blood clots from reaching your lungs. A radiologist reviews the procedure to ensure its success and your safety.

12 services12 patients

Replacement of stomach or large bowel tube using fluoroscopic guidance with contrast 49450

This procedure involves replacing a tube in your stomach or large bowel. It's guided by a special type of X-ray called fluoroscopy, which helps ensure accurate placement. Contrast material is used to enhance the visibility of your internal structures.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$104.51 typical visit price

range $69.00 – $202.35

Typical copayment $26.12 (range $17.25 – $50.58)

Most-billed visit code 99203

Established Patient

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

74.46/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Promoting Interoperability

Improvement Activities

Cost

46.68

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.

CATHERINE RAMSDELL NNP

Nurse Practitioner (Neonatal)

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 353-1000

DR. CLAUDIO ANDRES BRAVO CARRILLO M.D.

Internal Medicine (Advanced Heart Failure and Transplant Cardiology)

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 502-4243

MAURICIO JALIFE BUCAY M.D

Hospitalist

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 750-4994

EMMA B SHAK M.D.

Student in an Organized Health Care Education/Training Program

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 476-1528

DR. ADRIANA A.T. MARTIN M.D., PH.D.

Internal Medicine

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 514-7288

WILLIAM JAMES DEARDORFF

Internal Medicine (Geriatric Medicine)

505 PARNASSUS AVE, 15 LONG
SAN FRANCISCO, CA 94143

San Francisco County (415) 406-1417

KEERTHANA REDDY BANALA

Student in an Organized Health Care Education/Training Program

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 514-7288

ROBERT CHRISTIAN WENZ

Nurse Anesthetist, Certified Registered

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 353-8054

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 Alexander Lam's NPI number?

The NPI number for Alexander Lam is 1316231780. It was assigned to this individual provider in the NPPES registry on June 2, 2011. The provider is also known as Mr. Alex Huynh Lam.

Where is Alexander Lam located?

Alexander Lam practices at 505 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 353-2573.

What is Alexander Lam's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Vascular & Interventional Radiology, with taxonomy code 2085R0204X.

Is Alexander Lam enrolled in Medicare?

Yes. Alexander Lam 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 Alexander Lam's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Lam reassigns Medicare benefits to 3 organizations: University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and Alameda Health System (Alameda, CA). 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 Alexander Lam'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 Alexander Lam was last updated on January 27, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.