CHRIS YUHSUEN FENG MD
NPI 1508258294
Emergency Medicine in Berkeley, CA

Active since March 04, 2015PECOS EnrolledAccepts Medicare Assignment
2450 ASHBY AVE, BERKELEY, CA 94705(877) 346-2211 Get Directions Write a Review

NPPES record last updated: October 3, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 18, 2019, May 19, 2016 (2 updates tracked since 2016).

About Chris Yuhsuen Feng Md NPPES

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

CHRIS YUHSUEN FENG MD (NPI 1508258294) is an individual emergency medicine provider in Berkeley, California, licensed in California (A164620) and active in the NPI registry since March 2015. He is enrolled in Medicare PECOS, maintains 4 additional practice locations, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1508258294
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameCHRIS YUHSUEN FENGCredential: MD
Location Address2450 ASHBY AVEBerkeley, CA 94705-2067
Mailing Address1200 N State StLos Angeles, CA 90089-1001 · (323) 409-7053 · Fax (323) 226-7927
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateMarch 4, 2015
Last NPPES UpdateOctober 3, 20252 updates tracked since enumeration
NPPES CertifiedOctober 3, 2025
✔ NPI 1508258294 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in CA · A164620✔ Licensed in MA · 291857
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
2450 ASHBY AVE, Berkeley, CA 94705

Other Names 1

Former Name (1)Yu-hsuen Feng Md

Secondary Practice Locations 4

Location 1350 Hawthorne AveOakland, CA 94609-3108 · Phone (877) 346-2211
Location 255 Fogg RdWeymouth, MA 02190-2432 · Phone (781) 624-8000
Location 3240 E Huron St, Suite 1-200Chicago, IL 60611-2909 · Phone (312) 503-7975
Location 41200 N State St., GNH-1011LOS ANGELES, CA 90033 · Phone (323) 409-7053 · Fax (323) 226-7927

Accepted Insurance

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

Chris Yuhsuen Feng 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 ID8820499023
PECOS Enrollment IDI20251022001272
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

10

Medicare enrollment records show Chris Feng reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Emergency Medicine
2450 ASHBY AVE
Berkeley, CA 94705
  • Reassigned Medicare billing, California enrollment
  • 54 clinicians in this Medicare group
Emergency Medicine
845 JACKSON ST
San Francisco, CA 94133
  • Reassigned Medicare billing, California enrollment
  • 27 clinicians in this Medicare group
Emergency Medicine
200 GROTON RD
Ayer, MA 01432
  • Reassigned Medicare billing, Massachusetts enrollment
  • 290 clinicians in this Medicare group
Internal Medicine
75 FRANCIS ST
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 4,574 clinicians in this Medicare group
Emergency Medical Services
330 BROOKLINE AVE
Boston, MA 02215
  • Reassigned Medicare billing, Massachusetts enrollment
  • 253 clinicians in this Medicare group
General Acute Care Hospital
330 BROOKLINE AVE, ST 207
Boston, MA 02215
  • Reassigned Medicare billing, Massachusetts enrollment
  • 1,477 clinicians in this Medicare group
Emergency Medicine
330 BROOKLINE AVE
Boston, MA 02215
  • Reassigned Medicare billing, Massachusetts enrollment
  • 247 clinicians in this Medicare group
Behavior Analyst
100 HIGHLAND ST STE 126
Milton, MA 02186
  • Reassigned Medicare billing, Massachusetts enrollment
  • 177 clinicians in this Medicare group
Urgent Care
119 PARKINGWAY
Quincy, MA 02169
  • Reassigned Medicare billing, Massachusetts enrollment
  • 62 clinicians in this Medicare group
Anesthesiology
55 FOGG RD
Weymouth, MA 02190
  • Reassigned Medicare billing, Massachusetts enrollment
  • 671 clinicians in this Medicare group

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 10

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
168 services167 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
102 services102 patients
Critical care, each additional 30 minutes 99292
Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.
85 services41 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
52 services52 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.
24 services24 patients
Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen 87635
This is a lab test that detects the presence of COVID-19 in your body. It uses a technique to amplify the virus's genetic material, either DNA or RNA, making it easier to identify. A positive result indicates an active infection.
14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94705 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 20

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

Pathology (Anatomic Pathology & Clinical Pathology)
2450 ASHBY AVE
BERKELEY, CA 94705
Hospitalist
2450 ASHBY AVE
BERKELEY, CA 94705
General Acute Care Hospital
2450 ASHBY AVE
BERKELEY, CA 94705
Internal Medicine (Pulmonary Disease)
2450 ASHBY AVE
BERKELEY, CA 94705
Nurse Practitioner (Adult Health)
2450 ASHBY AVE
BERKELEY, CA 94705
Internal Medicine
2450 ASHBY AVE
BERKELEY, CA 94705
Emergency Medicine
2450 ASHBY AVE
BERKELEY, CA 94705
Registered Nurse (Lactation Consultant)
2450 ASHBY AVE
BERKELEY, CA 94705

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 Chris Feng's NPI number?

The NPI number for Chris Feng is 1508258294. It was assigned to this individual provider in the NPPES registry on March 4, 2015. The provider is also known as Yu-Hsuen Feng MD.

Where is Chris Feng located?

Chris Feng practices at 2450 Ashby Ave, Berkeley, CA 94705. The listed phone number is (877) 346-2211.

What is Chris Feng's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Chris Feng enrolled in Medicare?

Yes. Chris Feng 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 Chris Feng's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Chris Feng reassigns Medicare benefits to 10 organizations: Berkeley Emergency Medical Group, Inc. (Berkeley, CA), California Emergency Associates A California Medical Corporation (San Francisco, CA), Steward Emergency Physicians, Inc (Ayer, MA), Brigham & Womens Physicians Organization Inc (Boston, MA), Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Boston, MA) and 5 more organizations, 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 Chris Feng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Chris Feng accept?

Health plans from WellSense Health Plan list Chris Feng as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Chris Feng was last updated on October 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.