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MARIA ISABEL LINARES VALDERRAMA M.D.
NPI 1659739324
Internal Medicine - Endocrinology, Diabetes & Metabolism in Pasadena, CA

Active since February 09, 2016PECOS EnrolledAccepts Medicare Assignment
84.52/100
CMS Quality Rating
675 S ARROYO PKWY STE 200, PASADENA, CA 91105(626) 585-4121 Get Directions Write a Review

NPPES record last updated: March 9, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Mar 9, 2026, Dec 30, 2025, Jun 9, 2025 and 6 more (9 updates tracked since 2016).

About Maria Isabel Linares Valderrama M.d. NPPES

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

MARIA ISABEL LINARES VALDERRAMA M.D. (NPI 1659739324) is an individual endocrinology, diabetes & metabolism provider in Pasadena, California, licensed in California (A160352) and active in the NPI registry since February 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2011).

NPPES Registry Identity

NPI1659739324
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameMARIA ISABEL LINARES VALDERRAMACredential: M.D.
Location Address675 S ARROYO PKWY STE 200Pasadena, CA 91105-3215
Mailing AddressPo Box 35380Las Vegas, NV 89133-5380 · (702) 579-3203
Phone(626) 585-4121
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateFebruary 9, 2016
Last NPPES UpdateMarch 9, 20269 updates tracked since enumeration
NPPES CertifiedMarch 9, 2026
✔ NPI 1659739324 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · A160352
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
675 S ARROYO PKWY STE 200, Pasadena, CA 91105
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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

Maria Isabel Linares Valderrama 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 ID7416286703
PECOS Enrollment IDI20190911003828
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 10

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.

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.
140 services80 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
104 services80 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.
50 services36 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.
47 services32 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
44 services42 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
36 services36 patients

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

84.52/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality52.65
Promoting Interoperability82
Improvement Activities40
Cost77.42

Referred Medical Equipment & Supplies CMS DME claims 3

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
17 suppliers51 claims135 services$5.72 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
14 suppliers24 claims34 services$1.08 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
4 suppliers111 claims111 services$186.73 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 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CAROLYN LEE PA-C
Physician Assistant
675 S ARROYO PKWY STE 200
PASADENA, CA 91105
Los Angeles County (626) 585-4120
RICARDO RIVAS-PLATA
Internal Medicine
675 S ARROYO PKWY STE 200
PASADENA, CA 91105
Los Angeles County (626) 585-4120

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 Linares Valderrama's NPI number?

The NPI number for Maria Linares Valderrama is 1659739324. It was assigned to this individual provider in the NPPES registry on February 9, 2016.

Where is Maria Linares Valderrama located?

Maria Linares Valderrama practices at 675 S Arroyo Pkwy Ste 200, Pasadena, CA 91105. The listed phone number is (626) 585-4121.

What is Maria Linares Valderrama's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Maria Linares Valderrama enrolled in Medicare?

Yes. Maria Linares Valderrama 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 Linares Valderrama was last updated on March 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.