NPPES file of Aug 9, 2026

Grace S. Liu, M.D.

MOHS-Micrographic Surgery Physician · Newport Beach, CA

Grace S. Liu, M.D. is a mohs-micrographic surgery physician with a practice address in Newport Beach, California, and NPI 1477564128, issued on Aug 10, 2006. Check the license (California A061446, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1477564128
Name
Grace S. Liu
Credential
M.D.
Primary taxonomy
MOHS-Micrographic Surgery Physician 207ND0101X
License number
A061446 CA
Self-reported in NPPES; status is on the state search
Practice location
3991 Macarthur Blvd, Newport Beach, CA 92660
Phone
(949) 863-0988
Enumerated
Aug 10, 2006
Record last updated
Oct 12, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(949) 863-0088
Medicare enrollment
Enrolled (PECOS I20040128000236); accepts Medicare assignment
Medical or professional school
University Of California, Irvine, California College Of Medicine, 1995
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3991 Macarthur Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Daniel Huang, DDSGeneral Practice Dentistry1992840565
  2. Maria Huang, M.D.Family Medicine Physician1336549989
  3. Laura Osmanski, NPPsychiatric/Mental Health Nurse Practitioner1265978647
  4. Lester Robertson, P.A.- CSurgical Physician Assistant1386033017

Verify Grace S. Liu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A061446
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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50% fewer Medicare Part D claims than the average mohs-micrographic surgery physician in 2024

286 Medicare Part D claims for 118 beneficiaries, against an average of 570 among the 1,396 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Grace Liu286
  2. Specialty average570

Most prescribed

  1. Ciclopirox26 claims
  2. Cephalexin24 claims
  3. Fluticasone Propionate24 claims
  4. Doxycycline Hyclate20 claims
  5. Valacyclovir19 claims
  6. Clobetasol Propionate18 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $2,782.51

9 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 1,074 providers of this specialty with any payment received $4,075.23 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Grace Liu$2,782.51
  2. Specialty average$4,075.23

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Grace S. Liu among 164 mohs-micrographic surgery physician records in California

Grace S. Liu, M.D. is one of 164 mohs-micrographic surgery physician records with a practice address in California. 95% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 55% newer
  • In a Medicare fileYes · 95% of these records are
  • In the CMS Doctors and Clinicians fileYes · 87% of these records are
  • Graduated1995 · median 2004 among the 143 with a school on file
  • Record last updated2007 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ND0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

MOHS-Micrographic Surgery Physician providers in California

There are 164 mohs-micrographic surgery physician records in California.

The 8 mohs-micrographic surgery physician records with the nearest ZIP codes

  1. Bobak Hedayati, MDNewport Beach, CA 926601568090272
  2. Gregory Henderson, M.D.Newport Beach, CA 926601619109519
  3. Larisa Lehmer, MDNewport Beach, CA 926601760845929
  4. Anne Marie McNeill, MD, PHDNewport Beach, CA 926601841365970
  5. Adam Rotunda, MDNewport Beach, CA 926601457469371
  6. Hung Ong, M.D.Newport Beach, CA 926631407842149
  7. Brent Martin, MDLaguna Hills, CA 926531972990869
  8. Danielle Moul, M.D.Laguna Beach, CA 926511700091113

Common questions

What is Grace S. Liu, M.D.'s NPI number?

Grace S. Liu, M.D.'s National Provider Identifier (NPI) is 1477564128, issued on Aug 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Grace S. Liu, M.D. located?

The NPPES record lists a practice address at 3991 Macarthur Blvd, Newport Beach, CA, 92660. Phone: (949) 863-0988. Providers update this record themselves, so call before visiting.

How can I verify Grace S. Liu, M.D.'s license?

NPPES lists California license number A061446, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Grace S. Liu, M.D. prescribe under Medicare Part D?

In 2024, Grace S. Liu, M.D. had 286 Medicare Part D claims for 118 beneficiaries; the average among mohs-micrographic surgery physician prescribers was 570. Part D covers Medicare prescriptions only.

What is Grace S. Liu, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.