Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. May-Anh Nguyen, MD

Individual provider Surgery Physician · NPI 1881391001

Dr. May-Anh Nguyen, MD practises General Surgery in San Jose, California. Qualified in 2017, 9 years ago. Practices with Shyamali Mallick Singhal MD PHD Inc, a 6-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California and Massachusetts.

Years since qualifying
9
Licensed in
CA, MA
In the registry since
2023
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2512 Samaritan Ct Ste G
San Jose, CA 95124-4002
Phone: (650) 282-3000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2500 Hospital Dr Bldg 15-1, Mountain View, CA 94040-4106 — (650) 282-3000

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence A198532 (CA)
Surgery Physician Taxonomy 208600000X · Licence 1014530 (MA)

Record details

NPI number1881391001
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 8, 2023
Last updated in NPPESFebruary 7, 2025
Certification dateFebruary 7, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL SURGERY
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Shyamali Mallick Singhal Md Phd Inc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of tissue 49 times · 78th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 16 times · 47th percentile
Colonoscopy 1–10 times
Hernia repair (minimally invasive) 1–10 times
Removal of skin lesions 1–10 times
Removal or shaving of skin growth 1–10 times
Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $1,480 4 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $1,200 10 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Shyamali Mallick Singhal MD PHD Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in San Jose