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Orthopaedic Surgery Specialists in Fountain Valley, CA

Browse 13 Orthopaedic Surgery providers listed in NPPES with a practice address in Fountain Valley, California.

13 Healthcare Providers

How Fountain Valley compares with the U.S.

Fountain Valley has 23 clinicians in Orthopaedic Surgery per 100,000 residents, 3.1 times the U.S. rate of 7.4.

That is 13 active clinicians in Orthopaedic Surgery with a practice address in Fountain Valley, for a population of 56,258.

The California rate is 5.8 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

100% of clinicians in Orthopaedic Surgery in Fountain Valley listed in the CMS Medicare file (12 of 12) accept Medicare assignment. That is higher than the California share of 95%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

8% of clinicians in Orthopaedic Surgery in Fountain Valley listed in the CMS Medicare file (1 of 12) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the California share of 24%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Orthopaedic Surgery Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Orthopaedic Surgery practitioners in Fountain Valley, CA

Source: CMS PECOS
PECOS Enrolled Specialists 13 In Fountain Valley, CA
Part B Lab & Imaging Eligible 13 Diagnostic Referrals
DME Ordering Eligible 13 Durable Medical Equipment
Home Health Agency Referrals 13 HHA Ordering Eligible
Showing 1โ€“13 of 13 providers
With recent CMS data first, then Aโ€“Z

Dr. Kenneth L Chambers , MD, MPH

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
11160 Warner Avenue, 311, Fountain Valley, CA 927084055
Phone: 7148507300
NPI Identifier 1023347846
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Dr. Timothy Tien-Wei Cheng , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
8700 Warner Ave Ste 140, Fountain Valley, CA 927083209
Phone: 7148507300
NPI Identifier 1972940872
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Dr. Ramy Elias , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
18111 Brookhurst St Ste 2600, Fountain Valley, CA 927086728
Phone: 7142001010
NPI Identifier 1437165362
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Dr. Ryan Andrew Fan , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
11190 Warner Ave Ste 300, Fountain Valley, CA 927084045
Phone: 7142417000
NPI Identifier 1720052459
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Dr. Peter Pyrko , MD, PhD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
11190 Warner Ave Ste 300, Fountain Valley, CA 927084045
Phone: 7142417000
NPI Identifier 1467695056
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Dr. Richard Charles Raczka , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
11190 Warner Ave Ste 300, Fountain Valley, CA 927084045
Phone: 7142417000
NPI Identifier 1194744680
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Dr. Daniel Terah Stein , MD

Orthopaedic Surgery

Active NPI Status
11160 Warner Ave Ste 311, Fountain Valley, CA 927084055
Phone: 7148507300
NPI Identifier 1205864477
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Minal Dileep Tapadia

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
11170 Warner Ave Ste 106, Fountain Valley, CA 927084014
Phone: 7145403244
NPI Identifier 1982995916
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Dr. Trieu T Tran , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
11180 Warner Ave, Ste 455, Fountain Valley, CA 927087505
Phone: 7148936008
NPI Identifier 1528179660
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Dr. Suketu Vaishnav , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
11190 Warner Ave Ste 300, Fountain Valley, CA 927084045
Phone: 7142417000
NPI Identifier 1912087750
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Dr. Jeffrey Wong , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
18785 Brookhurst St Ste 100, Fountain Valley, CA 927087300
Phone: 7145005056
NPI Identifier 1164790507
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Dr. Mohammad Zalzaleh , DO

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
8700 Warner Ave Ste 140, Fountain Valley, CA 927083209
Phone: 7148507300
NPI Identifier 1235792276
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Dr. Kathryn Caldwell Perkins Tift , MD

Orthopaedic Surgery

Active NPI Status Accepts Medicare Assignment
11160 Warner Ave, Suite 311, Fountain Valley, CA 927084055
Phone: 7148507300
NPI Identifier 1831382662
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Frequently Asked Questions about Orthopaedic Surgery in Fountain Valley

How do I check a Orthopaedic Surgery practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.