2026 NPPES data Ambulatory Care Registered Nurse NPI 1629631197 REGISTERED NURSE
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ESTELA MONTES, REGISTERED NURSE

Ambulatory Care Registered Nurse in EAST LOS ANGELES, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
580
Medicare Part D claims · 118 beneficiaries · Ambulatory Care Registered Nurse avg: 695

What the federal data shows

ESTELA MONTES, REGISTERED NURSE filed 580 Medicare Part D claims in 2023 as a Ambulatory Care Registered Nurse in EAST LOS ANGELES, California.

580
Part D claims, 2023

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

ESTELA MONTES, REGISTERED NURSE's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

580 Top 34% higher than 66% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about ESTELA MONTES, REGISTERED NURSE?

Quality data not reported

NPI registry status

Active

Issued 04/19/2019

NPI 1629631197

Primary specialty

Ambulatory Care Registered Nurse

Niche

3,123 US NPIs in this specialty

Medicare Part D claims

580 17% vs specialty avg

2023 prescription claims

Specialty avg: 695

Specialty distribution in California

How Ambulatory Care Registered Nurse compares to other specialties among California providers

California providers

Ambulatory Care Registered Nurse share within California

1. Ambulatory Care Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ambulatory Care Registered Nurse share within California

Specialty board-certification context

Estimated specialty board-certified rate — Ambulatory Care Registered Nurse (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Ambulatory Care Registered Nurse ABMS/AOA estimate

Est. board-certified rate (Ambulatory Care Registered Nurse) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Ambulatory Care Registered Nurse) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

ESTELA MONTES, REGISTERED NURSE appears in the CMS NPPES registry as a Ambulatory Care Registered Nurse provider holding REGISTERED NURSE credentials at 245 S FETTERLY AVE, EAST LOS ANGELES, CA, 90022, with a listed phone of (323) 362-1420. NPI 1629631197 was issued on 04/19/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MONTES most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 580 prescription claims written by this provider, covering 118 Medicare beneficiaries and totaling roughly $37K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Ambulatory Care Registered Nurse is a narrow specialty nationwide, with 3,123 enrolled providers across 53 states and an average of 695 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

245 S FETTERLY AVE
EAST LOS ANGELES, CA 90022

Provider Details

NPI 1629631197
Specialty Ambulatory Care Registered Nurse
Credentials REGISTERED NURSE
Gender Female
NPI Issued 04/19/2019

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to ESTELA MONTES, REGISTERED NURSE. To verify ESTELA MONTES, REGISTERED NURSE's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

580
Total Claims
$37K
Total Drug Cost
118
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,164
Total Day Supply
33,616
Generic Drug Cost
$11K
Antibiotic Claims
12

Patient Demographics

Average Patient Age
73.2 years
Avg HCC Risk Score
1.30
Gender Split
54% female / 46% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What ESTELA MONTES, REGISTERED NURSE prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Amlodipine Besylate
45
Levothyroxine Sodium
33
Losartan Potassium
32
Metformin Hcl
32
Atorvastatin Calcium
29
Gabapentin
28
Benazepril Hcl
18
Lisinopril
18
Ibuprofen
17
Alendronate Sodium
14

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Ambulatory Care Registered Nurse Overview

How ESTELA MONTES, REGISTERED NURSE fits within the Ambulatory Care Registered Nurse landscape nationally.

3,123
Ambulatory Care Registered Nurse Providers in US
53
States with Ambulatory Care Registered Nurse
695
Avg Claims per Provider

ESTELA MONTES, REGISTERED NURSE's 580 claims are below the specialty average of 695.

Nearby Ambulatory Care Registered Nurse Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as MONTES.

Compare Ambulatory Care Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is ESTELA MONTES, REGISTERED NURSE's specialty?
ESTELA MONTES, REGISTERED NURSE specializes in Ambulatory Care Registered Nurse and practices in EAST LOS ANGELES, California. Credentials: REGISTERED NURSE.
How much does ESTELA MONTES, REGISTERED NURSE prescribe under Medicare Part D?
In 2023, ESTELA MONTES, REGISTERED NURSE wrote 580 Medicare Part D claims totaling $37K in drug costs for 118 beneficiaries.
Where is ESTELA MONTES, REGISTERED NURSE located?
ESTELA MONTES, REGISTERED NURSE is located at 245 S FETTERLY AVE, EAST LOS ANGELES, CA, 90022. Phone: (323) 362-1420.
What is ESTELA MONTES, REGISTERED NURSE's NPI number?
ESTELA MONTES, REGISTERED NURSE's National Provider Identifier (NPI) is 1629631197, issued on 04/19/2019.
How many Ambulatory Care Registered Nurse providers are there in the US?
There are 3,123 Ambulatory Care Registered Nurse providers across 53 states in the US. The average Ambulatory Care Registered Nurse provider writes 695 Medicare Part D claims per year.
What drugs does ESTELA MONTES, REGISTERED NURSE prescribe most often?
Based on 2023 Medicare Part D data, ESTELA MONTES, REGISTERED NURSE's most frequently prescribed drugs include Amlodipine Besylate, Levothyroxine Sodium, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ESTELA MONTES, REGISTERED NURSE accept Medicare?
ESTELA MONTES, REGISTERED NURSE appears in CMS Medicare data with 580 Part D claims and 118 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ESTELA MONTES, REGISTERED NURSE's credentials?
ESTELA MONTES, REGISTERED NURSE's NPI is 1629631197 with credentials REGISTERED NURSE. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology