JUDY W NG MD
NPI 1720059579
Dermatology in San Francisco, CA

Q: What is Judy Ng's NPI number?

The NPI number for Judy Ng is 1720059579. It was assigned to this individual provider in the NPPES registry on January 30, 2006.

Q: What is Judy Ng's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Q: When was this NPI record last updated?

The NPPES record for Judy Ng was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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 January 30, 2006PECOS Enrolled

4-50 SUTTER ST, SUITE 1306, SAN FRANCISCO, CA 94108(415) 781-4083(415) 781-4104 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Judy W Ng Md NPPES

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

JUDY W NG MD (NPI 1720059579) is an individual dermatology provider in San Francisco, California, licensed in California (A78745) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1998).

NPPES Registry Identity

NPI1720059579

Entity TypeIndividualFemale

Primary Taxonomy207N00000X

Provider Legal NameJUDY W NGCredential: MD

Location Address4-50 SUTTER ST, SUITE 1306San Francisco, CA 94108-4006

Mailing Address4-50 Sutter St, Suite 1306San Francisco, CA 94108-4006 · (415) 781-4083 · Fax (415) 781-4104

Phone(415) 781-4083

Fax(415) 781-4104

Sole ProprietorNo

Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 1998

Enumeration DateJanuary 30, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1720059579 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians

Taxonomy Code207N00000X

License✔ Licensed in CA · A78745

Definition

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

4-50 SUTTER ST, San Francisco, CA 94108

Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Judy W Ng Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6305862251

PECOS Enrollment IDI20051019001096

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 Reassignment

Medicare enrollment records show Judy Ng reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Norman H Epstein MD, John H Epstein MD, And Denny L Tuffanelli MD, Inc

Same address

Dermatology

450 SUTTER ST, SUITE 1306
San Francisco, CA 94108

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

NPI 1013027580 (415) 781-4083

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 13

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.

Therapy procedure using ultraviolet radiation with tar or petroleum jelly application 96910

This therapy involves applying tar or petroleum jelly on the skin, followed by exposure to ultraviolet radiation. It helps in treating skin conditions by slowing cell growth and reducing inflammation. It's a safe, controlled process, often used for conditions like psoriasis.

413 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.

366 services268 patients

Destruction of precancer skin growth, 2-14 growths 17003

This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.

238 services30 patients

Destruction of skin growth, 1-14 growths 17110

"Destruction of skin growth" refers to a procedure where 1-14 abnormal skin growths are removed. This is done using methods such as freezing, burning, or laser therapy. It helps prevent the growth from causing discomfort or turning into a more serious condition.

142 services102 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

133 services133 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

112 services71 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

82 services67 patients

Destruction of precancer skin growth, 1 growth 17000

"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.

50 services39 patients

Biopsy of related skin growth, first growth 11102

A biopsy of a skin growth involves taking a small sample of the growth to examine it under a microscope. This helps determine if the growth is harmful. The procedure is typically quick, with minimal discomfort. It's a crucial step in ensuring your skin's health.

47 services40 patients

Injection into skin growth, more than 7 growths 11901

This procedure involves injecting medication into multiple skin growths (more than 7) to either shrink them or eliminate them. It's a safe, minimally invasive method often used for benign growths. Comfort during the process is ensured.

37 services14 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

25 services25 patients

Injection into skin growth, 1-7 growths 11900

This procedure involves injecting medication into 1-7 skin growths. The medication helps to reduce the size of the growths or completely eliminate them. It's a simple, quick, and usually painless process performed by a medical professional.

16 services11 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94108 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.

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 Judy Ng's NPI number?

The NPI number for Judy Ng is 1720059579. It was assigned to this individual provider in the NPPES registry on January 30, 2006.

Where is Judy Ng located?

Judy Ng practices at 4-50 Sutter St Suite 1306, San Francisco, CA 94108. The listed phone number is (415) 781-4083.

What is Judy Ng's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Judy Ng enrolled in Medicare?

Yes. Judy Ng is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Judy Ng's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Judy Ng reassigns Medicare benefits to Norman H Epstein MD, John H Epstein MD, And Denny L Tuffanelli MD, Inc (San Francisco, CA). The 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 Judy Ng'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 Judy Ng was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.