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DR. JOHN K LOK M.D.
NPI 1992713028
Internal Medicine - Infectious Disease in Fountain Valley, CA

Active since August 04, 2006PECOS Enrolled
11160 WARNER AVE, SUITE 323, FOUNTAIN VALLEY, CA 92708(714) 751-7002(714) 751-9340 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. John K Lok M.d. NPPES

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

DR. JOHN K LOK M.D. (NPI 1992713028) is an individual infectious disease provider in Fountain Valley, California, licensed in California (G39849) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1992713028
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameDR. JOHN K LOKCredential: M.D.
Location Address11160 WARNER AVE, SUITE 323Fountain Valley, CA 92708-4008
Mailing Address11160 Warner Ave, Suite 323Fountain Valley, CA 92708-4008 · (714) 751-7002 · Fax (714) 751-9340
Phone(714) 751-7002
Fax(714) 751-9340
Sole ProprietorYes
Enumeration DateAugust 4, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1992713028 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in CA · G39849
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
11160 WARNER AVE, Fountain Valley, CA 92708
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Other Identifiers 3

Medicare ID-Type Unspecified00G39849CA
Medicare UPINF-34449CA
Medicaid00G398490CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. John K Lok M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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.

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.

ZAFAR S KHAN M.D. A MEDICAL CORPORATION
Surgery
11160 WARNER AVE, SUITE 311
FOUNTAIN VALLEY, CA 92708
Orange County (714) 850-7300
CIRCLEMED HEALTHCARE, A MEDICAL CORPORATION
Internal Medicine
11160 WARNER AVE, STE 405
FOUNTAIN VALLEY, CA 92708
Orange County (714) 263-0923
MEDICAL CENTER DENTAL GROUP
Dentist
11160 WARNER AVE, SUITE 303
FOUNTAIN VALLEY, CA 92708
Orange County (714) 557-8492
SHLOMI ALBERT MD INC
Urology
11160 WARNER AVE, SUITE 423
FOUNTAIN VALLEY, CA 92708
Orange County (714) 549-3333
LEDUC MEDICAL GROUP, INC.
Internal Medicine (Gastroenterology)
11160 WARNER AVE, SUITE 101
FOUNTAIN VALLEY, CA 92708
Orange County (714) 540-0105
DR. ELIZABETH Y NGHIEM M.D.
Internal Medicine (Infectious Disease)
11160 WARNER AVE, SUITE 323
FOUNTAIN VALLEY, CA 92708
Orange County (714) 751-7002
DR. JYOTSNA KENI M.D.
Pediatrics (Pediatric Endocrinology)
11160 WARNER AVE, SUITE 117
FOUNTAIN VALLEY, CA 92708
Orange County (714) 432-1950
PAYAM FARJOODI MD INC
Orthopaedic Surgery (Orthopaedic Surgery of the Spine)
11160 WARNER AVE
FOUNTAIN VALLEY, CA 92708
Orange County (714) 850-7300

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 John Lok's NPI number?

The NPI number for John Lok is 1992713028. It was assigned to this individual provider in the NPPES registry on August 4, 2006.

Where is John Lok located?

John Lok practices at 11160 Warner Ave Suite 323, Fountain Valley, CA 92708. The listed phone number is (714) 751-7002.

What is John Lok's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is John Lok enrolled in Medicare?

Yes. John Lok is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for John Lok was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.