MARK PETERS FOSTER M.D.
NPI 1548338908
Family Medicine in Laguna Hills, CA

Q: What is Mark Foster's NPI number?

The NPI number for Mark Foster is 1548338908. It was assigned to this individual provider in the NPPES registry on December 1, 2006.

Q: What is Mark Foster'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 Mark Foster was last updated on November 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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 December 01, 2006PECOS EnrolledAccepts Medicare Assignment

61.49/100

CMS Quality Rating

24411 HEALTH CENTER DR, SUITE 460, LAGUNA HILLS, CA 92653(949) 373-7799(949) 334-8377 Get Directions Write a Review

NPPES record last updated: November 16, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 16, 2025, Sep 18, 2025 (2 updates tracked since 2025).

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About Mark Peters Foster M.d. NPPES

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

MARK PETERS FOSTER M.D. (NPI 1548338908) is an individual family medicine provider in Laguna Hills, California, licensed in California (A85216) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS and is a graduate of Boston University School Of Medicine (2002).

NPPES Registry Identity

NPI1548338908

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameMARK PETERS FOSTERCredential: M.D.

Location Address24411 HEALTH CENTER DR, SUITE 460Laguna Hills, CA 92653-3651

Mailing AddressPo Box 35380Las Vegas, NV 89133-5380 · (702) 579-3203

Phone(949) 373-7799

Fax(949) 334-8377

Sole ProprietorNo

Medical School CMSBoston University School Of MedicineGraduated 2002

Enumeration DateDecember 1, 2006

Last NPPES UpdateNovember 16, 20252 updates tracked since enumeration

NPPES CertifiedNovember 16, 2025

✔ NPI 1548338908 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in CA · A85216

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.

24411 HEALTH CENTER DR, Laguna Hills, CA 92653

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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

Mark Peters Foster M.d. 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 ID6507893849

PECOS Enrollment IDI20050719000734

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 Mark Foster reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Saddleback Medical Group Inc

0.1 mi

Gastroenterology

24221 CALLE DE LA LOUISA, SUITE 400
Laguna Hills, CA 92653

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

NPI 1386605822 (949) 465-8155

Paloma Medical Group Inc

6.4 mi

Specialist

30230 RANCHO VIEJO RD, SUITE 200
San Juan Capistrano, CA 92675

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

NPI 1346331725 (949) 443-4303

Healthcare Partners Affiliates Medical Group

11 mi

Addiction Medicine

14591 NEWPORT AVE
Tustin, CA 92780

Reassigned Medicare billing, California enrollment
2,052 clinicians in this Medicare group

NPI 1891981502 (714) 442-4864

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 18

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.

437 services339 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.

365 services365 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.

296 services200 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

94 services87 patients

Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677

The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.

32 services32 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

32 services32 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.

31 services31 patients

Administration of pneumococcal vaccine G0009

The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.

31 services31 patients

Influenza vaccine, inactivated 90653

The Influenza vaccine, inactivated, is a shot given to protect against the flu. It contains killed virus particles that help your body build immunity to the flu. It's recommended annually to keep your protection up-to-date. It's safe for ages 6 months and up.

29 services29 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

24 services24 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

23 services23 patients

Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment G0402

An Initial Preventive Physical Examination, also known as a "Welcome to Medicare" visit, is a one-time, face-to-face visit during your first 12 months of Medicare enrollment. It includes a review of your health, as well as education and counseling about preventive services and further screenings.

23 services23 patients

Blood test, lipids (cholesterol and triglycerides) 80061

A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.

21 services21 patients

Ldl cholesterol level 83721

The LDL cholesterol level is a test that measures the amount of low-density lipoprotein (LDL) in your blood. LDL is often referred to as 'bad cholesterol' because high levels can lead to heart disease. Regular testing helps monitor and manage your heart health.

21 services21 patients

Thyroxine (thyroid chemical), free 84439

The Thyroxine (thyroid chemical), free test is a blood test that measures the level of free T4 in your body. T4 is a hormone produced by your thyroid gland and is essential for growth and metabolism. If your T4 levels are too high or too low, it could indicate a thyroid disorder.

20 services20 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

20 services20 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.

18 services18 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.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92653 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

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

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.

61.49/100

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

Individually scored

Quality

76.49

Promoting Interoperability

Improvement Activities

Cost

20.99

Reported Quality Measures

Breast Cancer Screening

1%473 patients1/55-star benchmark: 93%

Closing the Referral Loop: Receipt of Specialist Report

53%273 patients3/55-star benchmark: 87%

Colorectal Cancer Screening

74%1,257 patients4/55-star benchmark: 88%

Controlling High Blood Pressure

69%717 patients4/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

99%3,570 patients4/55-star benchmark: 100%

Falls: Screening for Future Fall Risk

0%843 patients1/55-star benchmark: 100%

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

34%2,192 patients2/55-star benchmark: 98%

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

16%1,998 patients1/55-star benchmark: 97%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

37%1,906 patients3/55-star benchmark: 61%

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

Patients combinedPopulations: 92% · 2,078 patients

Patients screened: 94% · 2,078 patients

14%57 patients1/55-star benchmark: 100%

Provide Patients Electronic Access to Their Health Information

92%801 patients4/55-star benchmark: 100%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 3% · 898 patients

Patients totalRate: 7% · 898 patients

4%898 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.

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.

LISA L. MAJER D.O

Family Medicine

24411 HEALTH CENTER DR, #510
LAGUNA HILLS, CA 92653

Orange County (949) 452-7525

STEPHANIE PFANNENSTIEL N.P.

Licensed Practical Nurse

24411 HEALTH CENTER DR, SUITE 200
LAGUNA HILLS, CA 92653

Orange County (949) 829-5500

DR. WANG TENG M.D.

Surgery (Vascular Surgery)

24411 HEALTH CENTER DR, SUITE 350
LAGUNA HILLS, CA 92653

Orange County (949) 457-7900

ERICK LEOPOLDO MONTERO M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery)

24411 HEALTH CENTER DR, SUITE 680
LAGUNA HILLS, CA 92653

Orange County (949) 268-4568

ROBBIN GONZALES PA-C

Physician Assistant (Surgical)

24411 HEALTH CENTER DR, STE 350
LAGUNA HILLS, CA 92653

Orange County (949) 457-7900

ANN MARIE RAFFO MD

Obstetrics & Gynecology

24411 HEALTH CENTER DR, SUITE 200
LAGUNA HILLS, CA 92653

Orange County (949) 829-5500

HENRY CHENG MD INC

Clinic/Center (Health Service)

24411 HEALTH CENTER DR, SUITE 530
LAGUNA HILLS, CA 92653

Orange County (949) 951-1969

DR. LINDA H CHUNG M.D.

Obstetrics & Gynecology

24411 HEALTH CENTER DR, SUITE 640
LAGUNA HILLS, CA 92653

Orange County (949) 770-4115

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 Mark Foster's NPI number?

The NPI number for Mark Foster is 1548338908. It was assigned to this individual provider in the NPPES registry on December 1, 2006.

Where is Mark Foster located?

Mark Foster practices at 24411 Health Center Dr Suite 460, Laguna Hills, CA 92653. The listed phone number is (949) 373-7799.

What is Mark Foster's specialty?

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

Is Mark Foster enrolled in Medicare?

Yes. Mark Foster 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 Mark Foster's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Foster reassigns Medicare benefits to 3 organizations: Saddleback Medical Group Inc (Laguna Hills, CA), Paloma Medical Group Inc (San Juan Capistrano, CA) and Healthcare Partners Affiliates Medical Group (Tustin, CA). 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 Mark Foster'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 Mark Foster was last updated on November 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.