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JOHN WILLISTON HARRIS M.D.
NPI 1356648703
Internal Medicine - Infectious Disease in Burbank, CA

Active since February 22, 2011PECOS EnrolledAccepts Medicare Assignment
501 S BUENA VISTA ST, BURBANK, CA 91505(818) 500-0935(818) 500-0728 Get Directions Write a Review

NPPES record last updated: November 24, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About John Williston Harris M.d. NPPES

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

JOHN WILLISTON HARRIS M.D. (NPI 1356648703) is an individual infectious disease provider in Burbank, California, licensed in California (A137473) and active in the NPI registry since February 2011. He is enrolled in Medicare PECOS and is a graduate of Other (2008).

NPPES Registry Identity

NPI1356648703
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameJOHN WILLISTON HARRISCredential: M.D.
Location Address501 S BUENA VISTA STBurbank, CA 91505-4809
Mailing Address4400 W Riverside Dr Ste 110-440Burbank, CA 91505-4046 · (818) 500-0935 · Fax (818) 500-0728
Phone(818) 500-0935
Fax(818) 500-0728
Sole ProprietorYes
Medical School CMSOtherGraduated 2008
Enumeration DateFebruary 22, 2011
Last NPPES UpdateNovember 24, 2025
NPPES CertifiedNovember 24, 2025
✔ NPI 1356648703 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 · A137473
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.
501 S BUENA VISTA ST, Burbank, CA 91505
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Other Identifiers 1

MedicaidGR0007180CA

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

John Williston Harris 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 ID8123271426
PECOS Enrollment IDI20150914000554
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 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.
1,075 services283 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
371 services95 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.
180 services178 patients
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.
91 services74 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.
62 services27 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91505 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.

DR. KENT VU M.D.
Anesthesiology
501 S BUENA VISTA ST
BURBANK, CA 91505
Los Angeles County (818) 843-5111
ERNEST ESTRADA VII P.A.
Physician Assistant
501 S BUENA VISTA ST, EM DEPT.
BURBANK, CA 91505
Los Angeles County (818) 843-5111
ST. JOSEPH PULMONARY DIAGNOSTIC MEDICAL GROUP
Specialist
501 S BUENA VISTA ST
BURBANK, CA 91505
Los Angeles County (818) 972-2626
CHRISTIAN JOSEPH GARIA PA
Physician Assistant
501 S BUENA VISTA ST
BURBANK, CA 91505
Los Angeles County (818) 843-5111
QUYNH THIEN QUACH D.O.
Anesthesiology
501 S BUENA VISTA ST
BURBANK, CA 91505
Los Angeles County (818) 843-5111
MARIA FISK R.D., C.D.E
Dietitian, Registered
501 S BUENA VISTA ST
BURBANK, CA 91505
Los Angeles County (818) 953-4494
KRISTEN RUMSEY KNAUFF RD
Dietitian, Registered
501 S BUENA VISTA ST
BURBANK, CA 91505
Los Angeles County (818) 847-3314
DR. JOHN BRANDON HAWKINS D.O.
Anesthesiology
501 S BUENA VISTA ST
BURBANK, CA 91505
Los Angeles County (818) 843-5111

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 Harris's NPI number?

The NPI number for John Harris is 1356648703. It was assigned to this individual provider in the NPPES registry on February 22, 2011.

Where is John Harris located?

John Harris practices at 501 S Buena Vista St, Burbank, CA 91505. The listed phone number is (818) 500-0935.

What is John Harris's specialty?

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

Is John Harris enrolled in Medicare?

Yes. John Harris 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 John Harris was last updated on November 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.