DR. ANTHONY DAI DUK MD
NPI 1154439131
Psychiatry & Neurology - Psychiatry in Redlands, CA

Active since August 29, 2006PECOS EnrolledAccepts Medicare Assignment
1809 W REDLANDS BLVD, REDLANDS, CA 92373(909) 335-3026(909) 335-3167 Get Directions Write a Review

NPPES record last updated: September 15, 2011. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Anthony Dai Duk Md NPPES

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

DR. ANTHONY DAI DUK MD (NPI 1154439131) is an individual psychiatry provider in Redlands, California, licensed in California (A80755) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Loma Linda University School Of Medicine (2001).

NPPES Registry Identity

NPI1154439131
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. ANTHONY DAI DUKCredential: MD
Location Address1809 W REDLANDS BLVDRedlands, CA 92373-8054
Mailing Address1809 W Redlands BlvdRedlands, CA 92373-8054 · (909) 335-3026 · Fax (909) 335-3167
Fax(909) 335-3167
Sole ProprietorNo
Medical School CMSLoma Linda University School Of MedicineGraduated 2001
Enumeration DateAugust 29, 2006
Last NPPES UpdateSeptember 15, 2011
✔ NPI 1154439131 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · A80755
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
1809 W REDLANDS BLVD, Redlands, CA 92373

Other Identifiers 1

Medicare UPINH74213

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. Anthony Dai Duk 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 ID2062564479
PECOS Enrollment IDI20090716000150
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

5

Medicare enrollment records show Anthony Duk reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Psychiatry
1809 W REDLANDS BLVD
Redlands, CA 92373
  • Reassigned Medicare billing, California enrollment
  • 194 clinicians in this Medicare group
Anesthesiology
350 TERRACINA BLVD
Redlands, CA 92373
  • Reassigned Medicare billing, California enrollment
  • 241 clinicians in this Medicare group
Psychiatry
19452 NORWICH STREET
Riverside, CA 92508
  • Reassigned Medicare billing, California enrollment
Psychiatry
333 CORPORATE DR STE 260
Ladera Ranch, CA 92694
  • Reassigned Medicare billing, California enrollment
  • 17 clinicians in this Medicare group
Multi-Specialty
131 E COMPTON BLVD
Compton, CA 90220
  • Reassigned Medicare billing, California enrollment
  • 554 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 3

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.
237 services72 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.
112 services41 patients
Psychiatric diagnostic evaluation with medical services 90792
A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.
22 services22 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92373 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
$179.42 typical visit price
range $59.60 – $179.42
Typical copayment $44.85 (range $14.90 – $44.85)
Most-billed visit code 99205
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
Most-billed visit code 99213
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.

Nurse Practitioner (Psychiatric/Mental Health)
1809 W REDLANDS BLVD
REDLANDS, CA 92373
Social Worker (Clinical)
1809 W REDLANDS BLVD
REDLANDS, CA 92373
Nurse Practitioner (Psychiatric/Mental Health)
1809 W REDLANDS BLVD
REDLANDS, CA 92373
Nurse Practitioner (Psychiatric/Mental Health)
1809 W REDLANDS BLVD
REDLANDS, CA 92373
Psychiatry & Neurology (Psychiatry)
1809 W REDLANDS BLVD
REDLANDS, CA 92373
Nurse Practitioner (Psychiatric/Mental Health)
1809 W REDLANDS BLVD
REDLANDS, CA 92373
Clinic/Center (Rehabilitation, Substance Use Disorder)
1809 W REDLANDS BLVD
REDLANDS, CA 92373
Psychiatry & Neurology (Psychiatry)
1809 W REDLANDS BLVD
REDLANDS, CA 92373

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 Anthony Duk's NPI number?

The NPI number for Anthony Duk is 1154439131. It was assigned to this individual provider in the NPPES registry on August 29, 2006.

Where is Anthony Duk located?

Anthony Duk practices at 1809 W Redlands Blvd, Redlands, CA 92373. The listed phone number is (909) 335-3026.

What is Anthony Duk's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Anthony Duk enrolled in Medicare?

Yes. Anthony Duk 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 Anthony Duk's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Anthony Duk reassigns Medicare benefits to 5 organizations: Inland Psychiatric Medical Group, Inc. (Redlands, CA), Darin Rentz Do PC (Redlands, CA), Metamorphic Psychiatry Inc (Riverside, CA), (Ladera Ranch, CA) and Martin Luther King Jr Community Medical Foundation (Compton, 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 Anthony Duk'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 Anthony Duk was last updated on September 15, 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.