DR. RALPH FONG JR. M.D.
NPI 1447290994
Family Medicine in San Ramon, CA

Q: What is Ralph Fong's NPI number?

The NPI number for Ralph Fong is 1447290994. It was assigned to this individual provider in the NPPES registry on June 6, 2006.

Q: What is Ralph Fong'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 Ralph Fong was last updated on June 21, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 June 06, 2006PECOS EnrolledAccepts Medicare Assignment

2305 CAMINO RAMON, SUITE 100, SAN RAMON, CA 94583(925) 837-1886(925) 837-3913 Get Directions Write a Review

NPPES record last updated: June 21, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Ralph Fong Jr. M.d. NPPES

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

DR. RALPH FONG JR. M.D. (NPI 1447290994) is an individual family medicine provider in San Ramon, California, licensed in California (G73942) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1990).

NPPES Registry Identity

NPI1447290994

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameDR. RALPH FONG JR.Credential: M.D.

Location Address2305 CAMINO RAMON, SUITE 100San Ramon, CA 94583-1396

Mailing AddressDept 34929, P.o. Box 39000San Francisco, CA 94139-0001 · (925) 952-2828 · Fax (925) 952-2850

Phone(925) 837-1886

Fax(925) 837-3913

Sole ProprietorNo

Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 1990

Enumeration DateJune 6, 2006

Last NPPES UpdateJune 21, 2012

✔ NPI 1447290994 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 · G73942

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.

2305 CAMINO RAMON, San Ramon, CA 94583

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Other Identifiers 4

Medicaid00G739420CA

Medicare PIN080117263CA

Medicare UPINF62424CA

Medicare PIN00G739421CA

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

Dr. Ralph Fong Jr. 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 ID5193881373

PECOS Enrollment IDI20090313000281

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 Reassignment

Medicare enrollment records show Ralph Fong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

John Muir Physician Network

11 mi

General Practice

1450 TREAT BLVD, SUITE 300
Walnut Creek, CA 94597

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

NPI 1841407665 (925) 296-9872

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 12

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.

289 services188 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.

187 services126 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.

160 services160 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

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

30 services30 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.

25 services25 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.

25 services25 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.

21 services20 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.

18 services18 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.

15 services15 patients

Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

15 services13 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

14 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94583 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

$104.51 typical visit price

range $69.00 – $202.35

Typical copayment $26.12 (range $17.25 – $50.58)

Most-billed visit code 99203

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

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.

Other Providers at the Same Location NPPES 12

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

DR. MAHMOOD REZA KAZEMI M.D.

Internal Medicine (Endocrinology, Diabetes & Metabolism)

2305 CAMINO RAMON, SUITE 270
SAN RAMON, CA 94583

Contra Costa County (925) 866-8700

DR. MARGARET J SALTZSTEIN M.D.

Pediatrics

2305 CAMINO RAMON, SUITE 120
SAN RAMON, CA 94583

Contra Costa County (925) 275-3888

DR. INOCENCIO D. CANDELARIA JR. M.D.

Family Medicine

2305 CAMINO RAMON, SUITE 100
SAN RAMON, CA 94583

Contra Costa County (925) 837-1886

DR. AFSHEEN MOSTOFI D.O.

Family Medicine

2305 CAMINO RAMON, SUITE 100
SAN RAMON, CA 94583

Contra Costa County (925) 837-1886

WILLIAM NORMAN HAMSTRA D.O.

Surgery

2305 CAMINO RAMON, SUITE 217
SAN RAMON, CA 94583

Contra Costa County (925) 447-0660

DR. ERIN MICHELLE LEE M.D.

Pediatrics

2305 CAMINO RAMON, SUITE 120
SAN RAMON, CA 94583

Contra Costa County (925) 275-3888

MS. ANGELA F POURGHASSEMI DMD

Dentist (General Practice)

2305 CAMINO RAMON, #230
SAN RAMON, CA 94583

Contra Costa County (925) 790-0101

DR. ETHAN D HOLLANDER M.D.

Family Medicine

2305 CAMINO RAMON, SUITE 100
SAN RAMON, CA 94583

Contra Costa County (925) 837-1886

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 Ralph Fong's NPI number?

The NPI number for Ralph Fong is 1447290994. It was assigned to this individual provider in the NPPES registry on June 6, 2006.

Where is Ralph Fong located?

Ralph Fong practices at 2305 Camino Ramon Suite 100, San Ramon, CA 94583. The listed phone number is (925) 837-1886.

What is Ralph Fong's specialty?

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

Is Ralph Fong enrolled in Medicare?

Yes. Ralph Fong 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 organization bills Medicare for Ralph Fong's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ralph Fong reassigns Medicare benefits to John Muir Physician Network (Walnut Creek, CA). The 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 Ralph Fong'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 Ralph Fong was last updated on June 21, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.