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BAO QUYNH N. HUYNH M.D.
NPI 1538313648
Internal Medicine - Rheumatology in Orange, CA

Active since November 17, 2008PECOS EnrolledAccepts Medicare Assignment
2501 E. CHAPMAN AVE, # 303, ORANGE, CA 92869(714) 628-3128 Get Directions Write a Review

NPPES record last updated: November 2, 2011. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Bao Quynh N. Huynh M.d. NPPES

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

BAO QUYNH N. HUYNH M.D. (NPI 1538313648) is an individual rheumatology provider in Orange, California, licensed in California (A117809) and active in the NPI registry since November 2008. She is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1538313648
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NameBAO QUYNH N. HUYNHCredential: M.D.
Location Address2501 E. CHAPMAN AVE, # 303Orange, CA 92869
Mailing AddressDept La 21069Pasadena, CA 91185
Phone(714) 628-3128
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateNovember 17, 2008
Last NPPES UpdateNovember 2, 2011
✔ NPI 1538313648 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
Licenses✔ Licensed in CA · A117809✔ Licensed in AL · 29493
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
2501 E. CHAPMAN AVE, Orange, CA 92869
Open in Google Maps ↗

Other Identifiers 1

Other033-0185031CA · Tax Id

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

Bao Quynh N. Huynh 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 ID6901072701
PECOS Enrollment IDI20111228000610
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 Bao Quynh Huynh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Kern County Hospital Authority
128 mi
General Acute Care Hospital
1700 MOUNT VERNON AVENUE
Bakersfield, CA 93306
  • Reassigned Medicare billing, California enrollment
  • 532 clinicians in this Medicare group
NPI 1376623538 (661) 326-2000

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 4

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.
52 services36 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.
45 services41 patients
Telephone medical discussion with physician, 11-20 minutes 99442
This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.
16 services14 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.
15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92869 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
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.

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 Bao Quynh Huynh's NPI number?

The NPI number for Bao Quynh Huynh is 1538313648. It was assigned to this individual provider in the NPPES registry on November 17, 2008.

Where is Bao Quynh Huynh located?

Bao Quynh Huynh practices at 2501 E. Chapman Ave # 303, Orange, CA 92869. The listed phone number is (714) 628-3128.

What is Bao Quynh Huynh's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Bao Quynh Huynh enrolled in Medicare?

Yes. Bao Quynh Huynh 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 Bao Quynh Huynh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Bao Quynh Huynh reassigns Medicare benefits to Kern County Hospital Authority (Bakersfield, 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 Bao Quynh Huynh'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 Bao Quynh Huynh was last updated on November 2, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.