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DR. TIMOTHY MESS M.D.
NPI 1043280076
Internal Medicine - Infectious Disease in Van Nuys, CA

Active since January 23, 2006PECOS Enrolled
15243 VANOWEN ST, SUITE 406, VAN NUYS, CA 91405(818) 782-5450(818) 780-4271 Get Directions Write a Review

NPPES record last updated: January 29, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Timothy Mess M.d. NPPES

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

DR. TIMOTHY MESS M.D. (NPI 1043280076) is an individual infectious disease provider in Van Nuys, California, licensed in California (G46553) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1043280076
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameDR. TIMOTHY MESSCredential: M.D.
Location Address15243 VANOWEN ST, SUITE 406Van Nuys, CA 91405-3605
Mailing AddressPo Box 5608Van Nuys, CA 91413-5608 · (818) 782-5450 · Fax (818) 780-4271
Phone(818) 782-5450
Fax(818) 780-4271
Sole ProprietorYes
Enumeration DateJanuary 23, 2006
Last NPPES UpdateJanuary 29, 2008
✔ NPI 1043280076 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 · G46553
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.
15243 VANOWEN ST, Van Nuys, CA 91405
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Other Identifiers 2

OtherG46553CA · Medicare, Ptan
Medicare UPINA50421CA

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. Timothy Mess 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.

Areas of Expertise CMS Part B claims 4

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.
198 services70 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.
54 services51 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.
48 services48 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.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91405 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. MITCHELL NISHIMOTO M.D.
Internal Medicine
15243 VANOWEN ST, SUITE 406
VAN NUYS, CA 91405
Los Angeles County (818) 785-3889
KYU HYUN KIM MD
Pediatrics
15243 VANOWEN ST, SUITE 300
VAN NUYS, CA 91405
Los Angeles County (818) 786-4910
CHARLES E WEIDMANN MD A PROFESSIONAL MEDICAL CORPORATION
Internal Medicine (Rheumatology)
15243 VANOWEN ST, STE 306
VAN NUYS, CA 91405
Los Angeles County (818) 781-0232
COWDREY'S VANOWEN TOWER PHARMACY, INC
Pharmacy (Community/Retail Pharmacy)
15243 VANOWEN ST, SUITE 100
VAN NUYS, CA 91405
Los Angeles County (818) 781-0111
KYU HYUN KIM MD INC
Pediatrics
15243 VANOWEN ST, SUITE 300
VAN NUYS, CA 91405
Los Angeles County (818) 786-4910
JADE T. ONG DDS. INC.
Dentist (General Practice)
15243 VANOWEN ST, SUITE 404
VAN NUYS, CA 91405
Los Angeles County (818) 908-1175
DR. MEE SOOK KIM M.D.
Obstetrics & Gynecology
15243 VANOWEN ST, SUITE 504
VAN NUYS, CA 91405
Los Angeles County (818) 781-8972
BEVERLY RADIOLOGY MEDICAL GROUP
Radiology (Diagnostic Radiology)
15243 VANOWEN ST
VAN NUYS, CA 91405
Los Angeles County (818) 782-6110

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 Timothy Mess's NPI number?

The NPI number for Timothy Mess is 1043280076. It was assigned to this individual provider in the NPPES registry on January 23, 2006.

Where is Timothy Mess located?

Timothy Mess practices at 15243 Vanowen St Suite 406, Van Nuys, CA 91405. The listed phone number is (818) 782-5450.

What is Timothy Mess's specialty?

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

Is Timothy Mess enrolled in Medicare?

Yes. Timothy Mess is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Timothy Mess was last updated on January 29, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.