WILLIAM KHIEU MD
NPI 1942203526
Family Medicine in Salinas, CA

Q: What is William Khieu's NPI number?

The NPI number for William Khieu is 1942203526. It was assigned to this individual provider in the NPPES registry on May 27, 2005.

Q: What is William Khieu's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for William Khieu was last updated on January 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 May 27, 2005PECOS EnrolledAccepts Medicare Assignment

335 KATHERINE AVE, SALINAS, CA 93901(831) 751-6222 Get Directions Write a Review

NPPES record last updated: January 12, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 12, 2026, Apr 7, 2021 (2 updates tracked since 2021).

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About William Khieu Md NPPES

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

WILLIAM KHIEU MD (NPI 1942203526) is an individual family medicine provider in Salinas, California, licensed in California (G79719) and active in the NPI registry since May 2005. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1993).

NPPES Registry Identity

NPI1942203526

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameWILLIAM KHIEUCredential: MD

Location Address335 KATHERINE AVESalinas, CA 93901-3176

Mailing Address335 Katherine AveSalinas, CA 93901-3176 · (831) 422-7275

Phone(831) 751-6222

Sole ProprietorNo

Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 1993

Enumeration DateMay 27, 2005

Last NPPES UpdateJanuary 12, 20262 updates tracked since enumeration

NPPES CertifiedJanuary 12, 2026

✔ NPI 1942203526 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in CA · G79719

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Also ListedAcupuncturistTaxonomy 171100000X · License G79719 (CA)

Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License G79719 (CA)

335 KATHERINE AVE, Salinas, CA 93901

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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

William Khieu Md 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 ID2365438918

PECOS Enrollment IDI20040610000607

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 William Khieu reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Athena Medical Group Of The Central Coast, Inc.

Same address

Clinic/Center

335 KATHERINE AVE
Salinas, CA 93901

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

NPI 1396178067 (831) 422-7275

Ob Gyn Associates Of The Central Coast

Same address

Obstetrics & Gynecology

335 KATHERINE AVE.
Salinas, CA 93901

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

NPI 1215980925 (831) 800-1913

Laima Obgyn Inc

14 mi

Obstetrics & Gynecology

337 EL DORADO ST STE B4
Monterey, CA 93940

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

NPI 1639626161 (831) 373-2486

Soledad Community Health Care District

24 mi

Rural Health

600 MAIN ST
Soledad, CA 93960

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

NPI 1003822453 (831) 678-2462

Community Health Centers Of America

55 mi

Federally Qualified Health Center (FQHC)

554 5TH ST
Gustine, CA 95322

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

NPI 1245105733 (209) 733-9360

Obhg California, P.C.

2,196 mi

Obstetrics & Gynecology

777 LOWNDES HILL RD BLDG 1
Greenville, SC 29607

Reassigned Medicare billing, California enrollment
Medicare enrollment name: Obhg California PC
711 clinicians in this Medicare group

NPI 1215258892 (800) 967-2289

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 14

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 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.

377 services197 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.

98 services79 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.

97 services71 patients

Complete ultrasound scan of abdomen 76700

A complete ultrasound scan of the abdomen is a non-invasive imaging procedure. It uses sound waves to produce images of the organs in your abdomen, such as the liver, gallbladder, spleen, pancreas, and kidneys. It helps in diagnosing, monitoring, and planning treatments.

57 services57 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

54 services53 patients

Advance care planning, first 30 minutes 99497

Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.

42 services41 patients

Annual alcohol misuse screening, 5 to 15 minutes G0442

An annual alcohol misuse screening is a 15-minute check-up to assess your drinking habits. It helps identify if you're consuming alcohol in a way that could harm your health. This is not a judgment, but a tool to promote your wellbeing.

36 services36 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

34 services34 patients

Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes G0446

This is a yearly, personal consultation focused on behaviors affecting heart health. It lasts 15 minutes and may cover topics like diet, exercise, and stress management. It's about learning healthy habits to protect your heart.

34 services34 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

21 services12 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

18 services17 patients

Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina 76830

An ultrasound scan of the lower abdominal region is a safe, non-invasive procedure that uses sound waves to create images of internal structures. This helps in checking the health of reproductive organs and detecting any abnormalities. The scan is done via a small probe inserted into the body.

16 services15 patients

Complete ultrasound scan of pelvis 76856

A complete ultrasound scan of the pelvis is a safe, non-invasive imaging procedure. It uses sound waves to create pictures of your lower abdomen area, helping doctors to evaluate and diagnose any potential issues. It's painless and usually takes about 30 minutes.

16 services15 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.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93901 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

$94.44 typical visit price

range $61.69 – $184.30

Typical copayment $23.61 (range $15.42 – $46.07)

Most-billed visit code 99203

Established Patient

$108.04 typical visit price

range $20.34 – $151.02

Typical copayment $27.01 (range $5.08 – $37.75)

Most-billed visit code 99214

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.

Reported Quality Measures

Breast Cancer Screening

Percentage of women 50-74 years of age who had a mammogram to screen for breast cancer

54%233 patients3/55-star benchmark: 92%

Cervical Cancer Screening

Percentage of women 21-64 years of age who were screened for cervical cancer using either of the following criteria: - Women age 21-64 who had cervical cytology performed every 3 years - Women age 30-64 who had cervical cytology/human papillomavirus (HPV)…

70%1,131 patients

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…

47%949 patients2/55-star benchmark: 97%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user

Patients screenedForUse: 77% · 658 patients

Patients tobacco: 14% · 21 patients

74%872 patients4/55-star benchmark: 98%

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.

Other Providers at the Same Location NPPES 11

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JOSEPH DAVI

Chiropractor

335 KATHERINE AVE
SALINAS, CA 93901

Monterey County (831) 262-1913

JOSEPHINE MARTINEZ-ORNUM RN, FNP

Nurse Practitioner

335 KATHERINE AVE
SALINAS, CA 93901

Monterey County (831) 751-6222

ATHENA MEDICAL GROUP OF THE CENTRAL COAST, INC.

Clinic/Center

335 KATHERINE AVE
SALINAS, CA 93901

Monterey County (831) 422-7275

LUDLOW MD CORP

Family Medicine

335 KATHERINE AVE
SALINAS, CA 93901

Monterey County (831) 900-5115

ANGELA ROSE CLARK N.P.

Nurse Practitioner (Women's Health)

335 KATHERINE AVE
SALINAS, CA 93901

Monterey County (831) 771-0903

CENTER FOR REPRODUCTIVE MEDICINE

Specialist

335 KATHERINE AVE
SALINAS, CA 93901

Monterey County (831) 757-3051

MEENA SUBBARAO, MD INC.

Pediatrics

335 KATHERINE AVE, SUITE 1
SALINAS, CA 93901

Monterey County (831) 444-6263

LUZ PACHECO GARCIA PAC

Physician Assistant (Medical)

335 KATHERINE AVE
SALINAS, CA 93901

Monterey County (831) 751-6222

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 William Khieu's NPI number?

The NPI number for William Khieu is 1942203526. It was assigned to this individual provider in the NPPES registry on May 27, 2005.

Where is William Khieu located?

William Khieu practices at 335 Katherine Ave, Salinas, CA 93901. The listed phone number is (831) 751-6222.

What is William Khieu's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is William Khieu enrolled in Medicare?

Yes. William Khieu 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 William Khieu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Khieu reassigns Medicare benefits to 6 organizations: Athena Medical Group Of The Central Coast, Inc. (Salinas, CA), Ob Gyn Associates Of The Central Coast (Salinas, CA), Laima Obgyn Inc (Monterey, CA), Soledad Community Health Care District (Soledad, CA), Community Health Centers Of America (Gustine, CA) and 1 more organization, listed in the Medicare section above. 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 William Khieu'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 William Khieu was last updated on January 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.