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ANDREW MULLER MD
NPI 1710031893
Internal Medicine in Pasadena, CA

Active since January 23, 2007PECOS Enrolled
301 S FAIR OAKS AVE, SUITE 101, PASADENA, CA 91105(626) 585-4500 Get Directions Write a Review

NPPES record last updated: February 13, 2013. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Andrew Muller Md NPPES

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

ANDREW MULLER MD (NPI 1710031893) is an individual internal medicine provider in Pasadena, California, licensed in California (G57401) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1710031893
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameANDREW MULLERCredential: MD
Location Address301 S FAIR OAKS AVE, SUITE 101Pasadena, CA 91105-2561
Mailing Address301 S Fair Oaks Ave, Suite 300Pasadena, CA 91105-2561 · (626) 795-7556
Phone(626) 585-4500
Sole ProprietorYes
Enumeration DateJanuary 23, 2007
Last NPPES UpdateFebruary 13, 2013
✔ NPI 1710031893 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 · G57401
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.
301 S FAIR OAKS AVE, Pasadena, CA 91105
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Other Identifiers 4

MedicaidW14920BCA
Medicare UPINC36141CA
Medicare ID-Type UnspecifiedW14920CA · Pasadena
Medicare ID-Type UnspecifiedW14920ACA · Arcadia

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Andrew Muller Md 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 Reassignment

Medicare enrollment records show Andrew Muller reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Healthcare Partners Affiliates Medical Group
10 mi
Internal Medicine
1120 W WASHINGTON BLVD
Los Angeles, CA 90015
  • Reassigned Medicare billing, California enrollment
  • 2,052 clinicians in this Medicare group
NPI 1659312593 (213) 623-2225

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.

KAY ANN DABLER SLP
Speech-Language Pathologist
301 S FAIR OAKS AVE, SUITE 401
PASADENA, CA 91105
Los Angeles County (626) 744-0411
PASADENA FAMILY MEDICINE INC
General Practice
301 S FAIR OAKS AVE, STE #405
PASADENA, CA 91105
Los Angeles County (626) 792-1912
ARROYO SECO MEDICAL GROUP
Internal Medicine
301 S FAIR OAKS AVE, SUITE 300
PASADENA, CA 91105
Los Angeles County (626) 795-7556
AMERICAN MEDICAL EVALUATION CENTERS INC
Internal Medicine
301 S FAIR OAKS AVE, STE 107
PASADENA, CA 91105
Los Angeles County (310) 271-5875
W. FREDERICK STEPHENS,DDS,INC
Dentist (Oral and Maxillofacial Surgery)
301 S FAIR OAKS AVE, SUITE #107
PASADENA, CA 91105
Los Angeles County (626) 440-0099
BERT K. FUNATSU D.D.S.
Dentist (General Practice)
301 S FAIR OAKS AVE, SUITE 205
PASADENA, CA 91105
Los Angeles County (626) 796-8904
MICHAEL E STEUER, MD, PC
Specialist
301 S FAIR OAKS AVE, STE 105
PASADENA, CA 91105
Los Angeles County (626) 229-9425
GIRLFRIENDS MEDICAL GROUP, INC
Obstetrics & Gynecology (Obstetrics)
301 S FAIR OAKS AVE
PASADENA, CA 91105
Los Angeles County (626) 793-5250

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 Andrew Muller's NPI number?

The NPI number for Andrew Muller is 1710031893. It was assigned to this individual provider in the NPPES registry on January 23, 2007.

Where is Andrew Muller located?

Andrew Muller practices at 301 S Fair Oaks Ave Suite 101, Pasadena, CA 91105. The listed phone number is (626) 585-4500.

What is Andrew Muller's specialty?

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

Is Andrew Muller enrolled in Medicare?

Yes. Andrew Muller is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Andrew Muller's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Muller reassigns Medicare benefits to Healthcare Partners Affiliates Medical Group (Los Angeles, CA). The 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 Andrew Muller'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 Andrew Muller was last updated on February 13, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.