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ELIZABETH ANN NIETO M.D.
NPI 1689020760
Internal Medicine in Mission Viejo, CA

Active since May 09, 2016PECOS Enrolled
26800 CROWN VALLEY PKWY STE 325, MISSION VIEJO, CA 92691(949) 364-6000 Get Directions Write a Review

NPPES record last updated: October 28, 2020. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Oct 28, 2020, Jul 30, 2020, Jul 9, 2020 and 1 more (4 updates tracked since 2016).

About Elizabeth Ann Nieto M.d. NPPES

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

ELIZABETH ANN NIETO M.D. (NPI 1689020760) is an individual internal medicine provider in Mission Viejo, California, licensed in California (A168450) and active in the NPI registry since May 2016. She is enrolled in Medicare PECOS and maintains a secondary practice location in Minneapolis.

NPPES Registry Identity

NPI1689020760
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameELIZABETH ANN NIETOCredential: M.D.
Location Address26800 CROWN VALLEY PKWY STE 325Mission Viejo, CA 92691-6384
Mailing Address26800 Crown Valley Pkwy Ste 325Mission Viejo, CA 92691-6384 · (949) 364-6000
Phone(949) 364-6000
Sole ProprietorYes
Enumeration DateMay 9, 2016
Last NPPES UpdateOctober 28, 20204 updates tracked since enumeration
NPPES CertifiedOctober 28, 2020
✔ NPI 1689020760 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 · A168450
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.
26800 CROWN VALLEY PKWY STE 325, Mission Viejo, CA 92691
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Other Names 1

Former Name (1)Elizabeth Ann Colwell M.d.

Secondary Practice Location 1

Location 1420 Delaware Street SE, MMC 508Minneapolis, MN 55455-3200 · Phone (612) 626-5031

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Elizabeth Ann Nieto 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.

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 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.
101 services67 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.
46 services46 patients
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.
42 services38 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.
32 services30 patients
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025
A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.
21 services20 patients
Blood test, thyroid stimulating hormone (tsh) 84443
A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.
19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92691 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 4

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

MRS. TINA MARIE ORTIZ
Marriage & Family Therapist
26800 CROWN VALLEY PKWY STE 325
MISSION VIEJO, CA 92691
Orange County (949) 364-6000
DR. RAJIVE ZACHARIAH M.D.
Internal Medicine
26800 CROWN VALLEY PKWY STE 325
MISSION VIEJO, CA 92691
Orange County (949) 364-6000
STEFANIE ZARGARBASHI LCSW
Social Worker (Clinical)
26800 CROWN VALLEY PKWY STE 325
MISSION VIEJO, CA 92691
Orange County (949) 364-6000
CATHERINE ANNE MIRANDA NP-C
Nurse Practitioner (Family)
26800 CROWN VALLEY PKWY STE 325
MISSION VIEJO, CA 92691
Orange County (949) 364-6000

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 Elizabeth Nieto's NPI number?

The NPI number for Elizabeth Nieto is 1689020760. It was assigned to this individual provider in the NPPES registry on May 9, 2016. The provider is also known as Elizabeth Ann Colwell M.D..

Where is Elizabeth Nieto located?

Elizabeth Nieto practices at 26800 Crown Valley Pkwy Ste 325, Mission Viejo, CA 92691. The listed phone number is (949) 364-6000.

What is Elizabeth Nieto's specialty?

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

Is Elizabeth Nieto enrolled in Medicare?

Yes. Elizabeth Nieto is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Elizabeth Nieto was last updated on October 28, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.