DR. MARIA R. SANTOS-MONTEMAYOR MD
NPI 1316974397
Internal Medicine in Arcadia, CA

Active since June 27, 2006PECOS EnrolledAccepts Medicare Assignment
450 E HUNTINGTON DR, ARCADIA, CA 91006(626) 462-1884 Get Directions Write a Review

NPPES record last updated: January 9, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Maria R. Santos-montemayor Md NPPES

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

DR. MARIA R. SANTOS-MONTEMAYOR MD (NPI 1316974397) is an individual internal medicine provider in Arcadia, California, licensed in Connecticut (042995) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1989).

NPPES Registry Identity

NPI1316974397
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARIA R. SANTOS-MONTEMAYORCredential: MD
Location Address450 E HUNTINGTON DRArcadia, CA 91006-3748
Mailing AddressPo Box 35380Las Vegas, NV 89133-5380 · (702) 579-3203
Sole ProprietorNo
Medical School CMSOtherGraduated 1989
Enumeration DateJune 27, 2006
Last NPPES UpdateJanuary 9, 2026
NPPES CertifiedJanuary 9, 2026
NPI 1316974397 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in CT · 042995
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 · Infectious DiseaseTaxonomy 207RI0200X · License A79424 (CA)
450 E HUNTINGTON DR, Arcadia, CA 91006

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

Dr. Maria R. Santos-montemayor Md 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 ID3274564935
PECOS Enrollment IDI20060828000554
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 8

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.

Urinalysis, manual test 81002
A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.
79 services53 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
72 services54 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
59 services59 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
50 services41 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
38 services38 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
22 services22 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91006 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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
6 suppliers18 claims39 services$6.01 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Physician Assistant
450 E HUNTINGTON DR
ARCADIA, CA 91006
Internal Medicine
450 E HUNTINGTON DR
ARCADIA, CA 91006
Obstetrics & Gynecology
450 E HUNTINGTON DR
ARCADIA, CA 91006
Dermatology
450 E HUNTINGTON DR
ARCADIA, CA 91006
Internal Medicine
450 E HUNTINGTON DR
ARCADIA, CA 91006
Dietitian, Registered
450 E HUNTINGTON DR
ARCADIA, CA 91006
Internal Medicine
450 E HUNTINGTON DR
ARCADIA, CA 91006
Registered Nurse (Diabetes Educator)
450 E HUNTINGTON DR
ARCADIA, CA 91006

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 Maria Santos-montemayor's NPI number?

The NPI number for Maria Santos-montemayor is 1316974397. It was assigned to this individual provider in the NPPES registry on June 27, 2006.

Where is Maria Santos-montemayor located?

Maria Santos-montemayor practices at 450 E Huntington Dr, Arcadia, CA 91006. The listed phone number is (626) 462-1884.

What is Maria Santos-montemayor's specialty?

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

Is Maria Santos-montemayor enrolled in Medicare?

Yes. Maria Santos-montemayor 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 Maria Santos-montemayor was last updated on January 9, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.