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WILLIAM H. HONG MD
NPI 1245306745
Internal Medicine - Rheumatology in Inglewood, CA

Active since November 27, 2006PECOS EnrolledAccepts Medicare Assignment
575 E HARDY ST, SUITE 212, INGLEWOOD, CA 90301(310) 674-9710(310) 590-1030 Get Directions Write a Review

NPPES record last updated: August 9, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About William H. Hong Md NPPES

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

WILLIAM H. HONG MD (NPI 1245306745) is an individual rheumatology provider in Inglewood, California, licensed in California (A52579) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1987).

NPPES Registry Identity

NPI1245306745
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameWILLIAM H. HONGCredential: MD
Location Address575 E HARDY ST, SUITE 212Inglewood, CA 90301-4026
Mailing AddressPo Box 1634Inglewood, CA 90308-1634 · (310) 674-9710 · Fax (310) 590-1030
Phone(310) 674-9710
Fax(310) 590-1030
Sole ProprietorNo
Medical School CMSOtherGraduated 1987
Enumeration DateNovember 27, 2006
Last NPPES UpdateAugust 9, 2013
✔ NPI 1245306745 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in CA · A52579
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.
Also ListedInternal MedicineTaxonomy 207R00000X · License A52579 (CA)
575 E HARDY ST, Inglewood, CA 90301
Open in Google Maps ↗

Other Identifiers 4

Medicare UPING72316CA
Medicare PINWA52579BCA
OtherW16682CA · Group Number
Medicaid00A525790CA

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

William H. Hong 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 ID1355246620
PECOS Enrollment IDI20031203000135
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 William Hong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

William H. Hong, M.D., Inc
Same address
Rheumatology
575 E HARDY ST, SUITE 212
Inglewood, CA 90301
  • Reassigned Medicare billing, California enrollment
NPI 1255529152 (310) 674-9710

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 6

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.

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
485 services74 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.
382 services103 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
99 services52 patients
Injection of trigger points, 1-2 muscles 20552
Trigger point injection is a procedure used to treat painful areas of muscle that contain trigger points, or knots of muscle that form when muscles do not relax. 1-2 muscles are typically treated in one session. The procedure involves injecting medications into these points to alleviate pain.
83 services38 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.
35 services31 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
25 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90301 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.

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.

ASHKAN SOLEYMANI, DPM, INC
Podiatrist (Foot & Ankle Surgery)
575 E HARDY ST, SUITE 212
INGLEWOOD, CA 90301
Los Angeles County (310) 590-2333
GERALD BRESNAHAN, M.D., INC.
Internal Medicine (Cardiovascular Disease)
575 E HARDY ST, SUITE 305
INGLEWOOD, CA 90301
Los Angeles County (310) 672-3636
FATEMA A SHAMIM MD INC
Pediatrics
575 E HARDY ST, STE 221
INGLEWOOD, CA 90301
Los Angeles County (310) 677-9131
JEAN ALLARD, M.D., INC
Thoracic Surgery (Cardiothoracic Vascular Surgery)
575 E HARDY ST, SUITE 322
INGLEWOOD, CA 90301
Los Angeles County (310) 671-0488
CHRISTOPHER MEILLEUR MD
Obstetrics & Gynecology
575 E HARDY ST
INGLEWOOD, CA 90301
Los Angeles County (310) 419-8585
ROMAN A. LITWINSKI, M.D., INC
Surgery (Vascular Surgery)
575 E HARDY ST, SUITE 322
INGLEWOOD, CA 90301
Los Angeles County (310) 673-6950
OLU OREDUGBA MD A PROFESSIONAL MEDICAL CORPORATION
Internal Medicine (Nephrology)
575 E HARDY ST, SUITE 104
INGLEWOOD, CA 90301
Los Angeles County (310) 671-3148
DR. OLU OREDUGBA MD
Internal Medicine (Nephrology)
575 E HARDY ST, SUITE #104
INGLEWOOD, CA 90301
Los Angeles County (310) 671-3148

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 William Hong's NPI number?

The NPI number for William Hong is 1245306745. It was assigned to this individual provider in the NPPES registry on November 27, 2006.

Where is William Hong located?

William Hong practices at 575 E Hardy St Suite 212, Inglewood, CA 90301. The listed phone number is (310) 674-9710.

What is William Hong's specialty?

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

Is William Hong enrolled in Medicare?

Yes. William Hong 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 William Hong's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Hong reassigns Medicare benefits to William H. Hong, M.D., Inc (Inglewood, 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 William Hong'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 William Hong was last updated on August 9, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.