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DR. JAMES C.S. HAHN M.D.
NPI 1033293634
Internal Medicine in Los Angeles, CA

Active since October 24, 2006PECOS EnrolledAccepts Medicare Assignment
1245 WILSHIRE BLVD, SUITE 790, LOS ANGELES, CA 90017(323) 735-1111(323) 735-3306 Get Directions Write a Review

NPPES record last updated: October 11, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Oct 11, 2023, Mar 19, 2020, Mar 31, 2017 and 1 more (4 updates tracked since 2016).

About Dr. James C.s. Hahn M.d. NPPES

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

DR. JAMES C.S. HAHN M.D. (NPI 1033293634) is an individual internal medicine provider in Los Angeles, California, licensed in California (A36933) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1975).

NPPES Registry Identity

NPI1033293634
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JAMES C.S. HAHNCredential: M.D.
Location Address1245 WILSHIRE BLVD, SUITE 790Los Angeles, CA 90017-4810
Mailing Address1245 Wilshire Blvd, Suite 790Los Angeles, CA 90017-4810 · (323) 735-1111 · Fax (323) 735-3306
Phone(323) 735-1111
Fax(323) 735-3306
Sole ProprietorYes
Medical School CMSOtherGraduated 1975
Enumeration DateOctober 24, 2006
Last NPPES UpdateOctober 11, 20234 updates tracked since enumeration
NPPES CertifiedOctober 11, 2023
✔ NPI 1033293634 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A36933
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1245 WILSHIRE BLVD, Los Angeles, CA 90017
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. James C.s. Hahn 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 ID4587822382
PECOS Enrollment IDI20120224000663
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.

Areas of Expertise CMS Part B claims 2

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.
79 services44 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.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90017 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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
4 suppliers12 claims26 services$6.60 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

PETER LORBER, M.D., A MEDICAL CORPORATION
Psychiatry & Neurology (Neurology)
1245 WILSHIRE BLVD, SUITE 814
LOS ANGELES, CA 90017
Los Angeles County (213) 481-0592
HOMAYOUN TABANDEH M.D.
Ophthalmology
1245 WILSHIRE BLVD, 380
LOS ANGELES, CA 90017
Los Angeles County (213) 483-8810
DR. ELLSWORTH RAYMOND GRANT M.D
Internal Medicine (Hematology & Oncology)
1245 WILSHIRE BLVD, SUITE 801
LOS ANGELES, CA 90017
Los Angeles County (213) 481-3948
DR. ALEXIS GEORG HOEN MD
Internal Medicine
1245 WILSHIRE BLVD, STE 307
LOS ANGELES, CA 90017
Los Angeles County (213) 977-1165
DOWNTOWN LOS ANGELES MEDICAL GROUP INC
Specialist
1245 WILSHIRE BLVD, SUITE 905
LOS ANGELES, CA 90017
Los Angeles County (213) 481-0584
DR. RONALD ALAN GREENO MD
Internal Medicine (Pulmonary Disease)
1245 WILSHIRE BLVD, SUITE 407
LOS ANGELES, CA 90017
Los Angeles County (213) 977-4979
RICHARD H. ROE M.D.
Ophthalmology
1245 WILSHIRE BLVD, 380
LOS ANGELES, CA 90017
Los Angeles County (213) 483-8810
SKY JAZEL MCINTYRE AUD
Audiologist
1245 WILSHIRE BLVD, SUITE 100
LOS ANGELES, CA 90017
Los Angeles County (213) 483-9930

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 James Hahn's NPI number?

The NPI number for James Hahn is 1033293634. It was assigned to this individual provider in the NPPES registry on October 24, 2006.

Where is James Hahn located?

James Hahn practices at 1245 Wilshire Blvd Suite 790, Los Angeles, CA 90017. The listed phone number is (323) 735-1111.

What is James Hahn's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is James Hahn enrolled in Medicare?

Yes. James Hahn 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.

When was this NPI record last updated?

The NPPES record for James Hahn was last updated on October 11, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.