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NATHAN KWONG MD
NPI 1437654340
Internal Medicine in Fountain Valley, CA

Active since March 24, 2018PECOS EnrolledAccepts Medicare Assignment
76.74/100
CMS Quality Rating
17360 BROOKHURST STREET, FOUNTAIN VALLEY, CA 92708(714) 665-1797(714) 665-4680 Get Directions Write a Review

NPPES record last updated: December 23, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 23, 2022, Sep 9, 2021, Mar 24, 2018 (3 updates tracked since 2018).

About Nathan Kwong Md NPPES

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

NATHAN KWONG MD (NPI 1437654340) is an individual internal medicine provider in Fountain Valley, California, licensed in California (A173450) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1437654340
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameNATHAN KWONGCredential: MD
Location Address17360 BROOKHURST STREETFountain Valley, CA 92708
Mailing Address17360 Brookhurst StreetFountain Valley, CA 92708 · (714) 665-1797 · Fax (714) 665-4680
Phone(714) 665-1797
Fax(714) 665-4680
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateMarch 24, 2018
Last NPPES UpdateDecember 23, 20223 updates tracked since enumeration
NPPES CertifiedAugust 22, 2022
✔ NPI 1437654340 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 · A173450
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.
17360 BROOKHURST STREET, Fountain Valley, CA 92708
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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

Nathan Kwong 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 ID5698178226
PECOS Enrollment IDI20210720003318
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 5

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
375 services161 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
155 services149 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
82 services79 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
67 services37 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
62 services61 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92708 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

76.74/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality80.94
Promoting Interoperability78
Improvement Activities40
Cost55.12

Referred Medical Equipment & Supplies CMS DME claims 2

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

Nebulizer, with compressor E0570
DME-Other DME · category DE000N
1 supplier11 claims11 services$2.78 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier11 claims11 services$62.32 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 15

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

SHEILA PHUONG NGUYEN MD
Internal Medicine
17360 BROOKHURST STREET
FOUNTAIN VALLEY, CA 92708
Orange County (714) 665-1797
MARISA HERNANDEZ DESILVA APN
Nurse Practitioner (Family)
17360 BROOKHURST STREET, ATTN: WHOLE LIFE DEPARTMENT
FOUNTAIN VALLEY, CA, CA 92708
Orange County (657) 241-3450
DIANA PHAM
Marriage & Family Therapist
17360 BROOKHURST STREET
FOUNTAIN VALLEY, CA 92708
Orange County (909) 387-7200
DR. BILLY LE D.O.
Hospitalist
17360 BROOKHURST STREET, ATTN: CREDENTIALING DEPARTMENT
FOUNTAIN VALLEY, CA 92708
Orange County (714) 797-1797
MR. RICHARD COLLIN CHO MD
Internal Medicine
17360 BROOKHURST STREET, ATTN: CREDENTIALING DEPARTMENT
FOUNTAIN VALLEY, CA 92708
Orange County (949) 923-3200
MONICA SAMEH HANNA D.O.
Internal Medicine
17360 BROOKHURST STREET
FOUNTAIN VALLEY, CA 92708
Orange County (877) 844-0012
JESSICA VO M.D.
Internal Medicine
17360 BROOKHURST STREET
FOUNTAIN VALLEY, CA 92708
Orange County (877) 844-0012
IVAN RUDENKO MD
Internal Medicine
17360 BROOKHURST STREET
FOUNTAIN VALLEY, CA 92708
Orange County (714) 665-1797

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 Nathan Kwong's NPI number?

The NPI number for Nathan Kwong is 1437654340. It was assigned to this individual provider in the NPPES registry on March 24, 2018.

Where is Nathan Kwong located?

Nathan Kwong practices at 17360 Brookhurst Street, Fountain Valley, CA 92708. The listed phone number is (714) 665-1797.

What is Nathan Kwong's specialty?

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

Is Nathan Kwong enrolled in Medicare?

Yes. Nathan Kwong 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 Nathan Kwong was last updated on December 23, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.