1. Home
  2. Directory
  3. California
  4. Pasadena
  5. Internal Medicine
  6. NPI Profile

DR. LUIS DIMEN M.D.
NPI 1609843564
Internal Medicine in Pasadena, CA

Active since March 01, 2006PECOS Enrolled
10 CONGRESS ST, SUITE 208, PASADENA, CA 91105(626) 792-2166(626) 795-0740 Get Directions Write a Review

NPPES record last updated: November 2, 2015. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Luis Dimen M.d. NPPES

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

DR. LUIS DIMEN M.D. (NPI 1609843564) is an individual internal medicine provider in Pasadena, California, licensed in California (G76052) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1609843564
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. LUIS DIMENCredential: M.D.
Location Address10 CONGRESS ST, SUITE 208Pasadena, CA 91105-3045
Mailing Address10 Congress St, Sutie 208Pasadena, CA 91105-3045 · (626) 792-2166 · Fax (626) 795-0740
Phone(626) 792-2166
Fax(626) 795-0740
Sole ProprietorNo
Enumeration DateMarch 1, 2006
Last NPPES UpdateNovember 2, 2015
✔ NPI 1609843564 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G76052
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.
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License G76052 (CA)
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License G76052 (CA)
10 CONGRESS ST, Pasadena, CA 91105
Open in Google Maps ↗

Other Identifiers 3

Medicare UPINF79451CA
Medicare ID-Type UnspecifiedW481CA · Medicare Group Number
Medicaid00G760520CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Luis Dimen 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.

Medicare Billing Reassignments

3

Medicare enrollment records show Luis Dimen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Pasadena Hosptial Association, Ltd.
0.2 mi
General Acute Care Hospital
100 W CALIFORNIA BLVD
Pasadena, CA 91105
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Pasadena Hospital Association, Ltd.
  • 8 clinicians in this Medicare group
NPI 1396900650 (626) 397-5555
The Huntington Medical Foundation
0.2 mi
Internal Medicine
100 W CALIFORNIA BLVD
Pasadena, CA 91105
  • Reassigned Medicare billing, California enrollment
  • 204 clinicians in this Medicare group
NPI 1154467181 (626) 397-8335
Foothill Pulmonary & Critical Care Consultants Medical Group Inc.
1.7 mi
Critical Care Medicine
959 E WALNUT ST, SUITE 120
Pasadena, CA 91106
  • Reassigned Medicare billing, California enrollment
  • 32 clinicians in this Medicare group
NPI 1205862489 (626) 795-5118

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91105 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. CINDY JUSTO UYPITCHING M.D.
Family Medicine
10 CONGRESS ST, STE 208
PASADENA, CA 91105
Los Angeles County (626) 795-4210
ALISA YANG MD
Internal Medicine
10 CONGRESS ST, SUITE 208
PASADENA, CA 91105
Los Angeles County (626) 792-2166
VALERIE P. MYERS, M.D. INC
Clinic/Center (Medical Specialty)
10 CONGRESS ST, #400
PASADENA, CA 91105
Los Angeles County (626) 449-6223
DOHENY EYE MEDICAL GROUP, INC
Ophthalmology
10 CONGRESS ST, SUITE 300
PASADENA, CA 91105
Los Angeles County (626) 395-0777
ROY CLARK DAVIS M.D.
Specialist
10 CONGRESS ST, SUITE 509
PASADENA, CA 91105
Los Angeles County (626) 795-6327
ADVANCED TRAUMA ASSOCIATES LLC
Surgery
10 CONGRESS ST, SUITE103
PASADENA, CA 91105
Los Angeles County (626) 795-0282
MERIEL L WU MD
Ophthalmology
10 CONGRESS ST, #340
PASADENA, CA 91105
Los Angeles County (626) 796-5325
DR. JAMES ARMEN MACER MD
Obstetrics & Gynecology
10 CONGRESS ST, SUITE 400
PASADENA, CA 91105
Los Angeles County (626) 449-6223

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 Luis Dimen's NPI number?

The NPI number for Luis Dimen is 1609843564. It was assigned to this individual provider in the NPPES registry on March 1, 2006.

Where is Luis Dimen located?

Luis Dimen practices at 10 Congress St Suite 208, Pasadena, CA 91105. The listed phone number is (626) 792-2166.

What is Luis Dimen's specialty?

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

Is Luis Dimen enrolled in Medicare?

Yes. Luis Dimen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Luis Dimen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Luis Dimen reassigns Medicare benefits to 3 organizations: Pasadena Hosptial Association, Ltd. (Pasadena, CA), The Huntington Medical Foundation (Pasadena, CA) and Foothill Pulmonary & Critical Care Consultants Medical Group Inc. (Pasadena, CA). Each 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 Luis Dimen'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 Luis Dimen was last updated on November 2, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.