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MARIETTA LIM UY MD
NPI 1891781290
Internal Medicine in Phoenix, AZ

Active since September 21, 2005
6.33/100
CMS Quality Rating
721 E BROOKWOOD CT, PHOENIX, AZ 85048(602) 821-6583 Get Directions Write a Review

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

About Marietta Lim Uy Md NPPES

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

MARIETTA LIM UY MD (NPI 1891781290) is an individual internal medicine provider in Phoenix, Arizona, licensed in Arizona (24339) and active in the NPI registry since September 2005. She is a graduate of Other (1987).

NPPES Registry Identity

NPI1891781290
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMARIETTA LIM UYCredential: MD
Location Address721 E BROOKWOOD CTPhoenix, AZ 85048-1947
Mailing Address3115 S Price Rd, #23-117Chandler, AZ 85248-3544 · (888) 488-7640
Phone(602) 821-6583
Sole ProprietorNo
Medical School CMSOtherGraduated 1987
Enumeration DateSeptember 21, 2005
Last NPPES UpdateAugust 25, 2026
NPPES CertifiedAugust 25, 2026
✔ NPI 1891781290 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in AZ · 24339
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.
721 E BROOKWOOD CT, Phoenix, AZ 85048
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Other Names 1

Former Name (1)Marietta Lim Mangubat M.d.

Other Identifiers 1

Medicaid363276-03AZ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marietta Lim Uy Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3476684507
PECOS Enrollment IDI20100706000369

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 nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
728 services153 patients
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310
A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.
520 services130 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
215 services201 patients
Nursing facility discharge management, more than 30 minutes 99316
Nursing facility discharge management over 30 minutes is a comprehensive process where a healthcare team prepares you for leaving the facility. It involves creating a tailored plan, coordinating care, and ensuring a smooth transition to your next care setting.
68 services67 patients

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.

6.33/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality0
Promoting Interoperability0
Improvement Activities0
Cost21.1

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 Marietta Uy's NPI number?

The NPI number for Marietta Uy is 1891781290. It was assigned to this individual provider in the NPPES registry on September 21, 2005. The provider is also known as Marietta Lim Mangubat M.D..

Where is Marietta Uy located?

Marietta Uy practices at 721 E Brookwood Ct, Phoenix, AZ 85048. The listed phone number is (602) 821-6583.

What is Marietta Uy's specialty?

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

Is Marietta Uy enrolled in Medicare?

Yes. Marietta Uy is registered in the Medicare PECOS enrollment system.

What insurance does Marietta Uy accept?

Health plans from Blue Cross Blue Shield of Arizona and Cigna HealthCare of Arizona, Inc list Marietta Uy as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Marietta Uy was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.