NANCY HSIEH PA-C
NPI 1750665444
Physician Assistant - Medical in Menlo Park, CA

Q: What is Nancy Hsieh's NPI number?

The NPI number for Nancy Hsieh is 1750665444. It was assigned to this individual provider in the NPPES registry on September 29, 2011.

Q: What is Nancy Hsieh's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Q: When was this NPI record last updated?

The NPPES record for Nancy Hsieh was last updated on April 11, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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 September 29, 2011PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

321 MIDDLEFIELD RD, SUITE 245, MENLO PARK, CA 94025(650) 326-7222(650) 326-7332 Get Directions Write a Review

NPPES record last updated: April 11, 2013. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Nancy Hsieh Pa-c NPPES

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

NANCY HSIEH PA-C (NPI 1750665444) is an individual medical provider in Menlo Park, California, licensed in California (PA22452) and active in the NPI registry since September 2011. She is enrolled in Medicare PECOS and is a graduate of Duke University School Of Medicine (2011).

NPPES Registry Identity

NPI1750665444

Entity TypeIndividualFemale

Primary Taxonomy363AM0700X

Provider Legal NameNANCY HSIEHCredential: PA-C

Location Address321 MIDDLEFIELD RD, SUITE 245Menlo Park, CA 94025-3500

Mailing Address321 Middlefield Rd, Suite 245Menlo Park, CA 94025-3500 · (650) 326-7222 · Fax (650) 326-7332

Phone(650) 326-7222

Fax(650) 326-7332

Sole ProprietorYes

Medical School CMSDuke University School Of MedicineGraduated 2011

Enumeration DateSeptember 29, 2011

Last NPPES UpdateApril 11, 2013

✔ NPI 1750665444 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363AM0700X

License✔ Licensed in CA · PA22452

321 MIDDLEFIELD RD, Menlo Park, CA 94025

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nancy Hsieh Pa-c 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 ID9931376811

PECOS Enrollment IDI20120913000416

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.

Areas of Expertise CMS Part B claims 16

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.

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.

497 services279 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.

267 services222 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.

205 services205 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.

188 services32 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.

154 services109 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.

112 services67 patients

Biopsy of related skin growth, each additional growth 11103

A biopsy of related skin growth is a procedure where a small piece of skin growth is removed for testing. If additional growths are identified, they may also be biopsied. This helps in diagnosing skin conditions and planning appropriate treatment.

95 services51 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.

65 services65 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.

49 services49 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.

45 services31 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.

37 services22 patients

Injection, methotrexate sodium, 50 mg J9260

Methotrexate sodium, 50 mg, is a medication often used to treat certain types of cancer or to control severe psoriasis or rheumatoid arthritis. It works by slowing the growth of cancer cells and suppressing the immune system.

33 services19 patients

Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm 11602

This procedure involves the surgical removal of a cancerous skin growth on the body, arms, or legs. The growth is between 1.1 and 2.0 cm in size. The goal is to eliminate cancer cells and prevent them from spreading to other parts of the body.

31 services26 patients

Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm 12032

This procedure involves the repair of a wound between 2.6-7.5 cm located on the scalp, underarms, trunk, arms, or legs. The process includes cleaning, debridement (removal of damaged tissue), and suturing (stitching) of the wound to promote healing.

31 services25 patients

Application of chemical to stop tissue regrowth in wound 17250

This procedure involves applying a special chemical to a wound to prevent unwanted tissue from growing back. It aids in proper healing by ensuring only healthy tissue regrows. It's a common, safe practice in wound care.

12 services11 patients

Punch biopsy, first skin growth 11104

A punch biopsy is a procedure where a small, circular tool is used to remove a sample of skin tissue. This is usually done to test a skin growth for potential issues. You may feel a pinch, but discomfort is minimal. The area heals quickly.

11 services11 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.

100/100

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

Individually scored

Promoting Interoperability

100

Improvement Activities

Reported Quality Measures

e-Prescribing

98%129 patients4/55-star benchmark: 100%

Provide Patients Electronic Access to Their Health Information

99%367 patients4/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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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.

PAUL TAEHYUN YUN MD

Otolaryngology

321 MIDDLEFIELD RD
MENLO PARK, CA 94025

San Mateo County (650) 498-6500

MAGGIE CHRISTINE BLAKE DPT

Physical Therapist (Pediatrics)

321 MIDDLEFIELD RD
MENLO PARK, CA 94025

San Mateo County (925) 324-7273

DR. AMANDA ROSE BERGERSEN OTD, OTR/L

Occupational Therapist (Pediatrics)

321 MIDDLEFIELD RD
MENLO PARK, CA 94025

San Mateo County (650) 736-2000

AYESHA CHATTERJI SUJAN

Psychologist

321 MIDDLEFIELD RD
MENLO PARK, CA 94025

San Mateo County (650) 497-8977

LUCILE PACKARD CHILDREN'S HOSPITAL

General Acute Care Hospital (Children)

321 MIDDLEFIELD RD, SUITE 130
MENLO PARK, CA 94025

San Mateo County (650) 497-0245

DR. TARA D MILLER MD

Dermatology

321 MIDDLEFIELD RD, STE #245
MENLO PARK, CA 94025

San Mateo County (650) 326-7222

CECILIE CLAIRE SIMONSEN SLP

Speech-Language Pathologist

321 MIDDLEFIELD RD
MENLO PARK, CA 94025

San Mateo County (734) 277-2391

STEPHEN HARE PTA

Physical Therapy Assistant

321 MIDDLEFIELD RD
MENLO PARK, CA 94025

San Mateo County (650) 497-8000

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 Nancy Hsieh's NPI number?

The NPI number for Nancy Hsieh is 1750665444. It was assigned to this individual provider in the NPPES registry on September 29, 2011.

Where is Nancy Hsieh located?

Nancy Hsieh practices at 321 Middlefield Rd Suite 245, Menlo Park, CA 94025. The listed phone number is (650) 326-7222.

What is Nancy Hsieh's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is Nancy Hsieh enrolled in Medicare?

Yes. Nancy Hsieh 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.

When was this NPI record last updated?

The NPPES record for Nancy Hsieh was last updated on April 11, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.