2026 NPPES data Women's Health Nurse Practitioner NPI 1538223771 WHCNP
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Mary Saiz, WHCNP

Women's Health Nurse Practitioner in Lovington, New Mexico. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 9,452 in Women's Health Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
211
Medicare Part D claims · 52 beneficiaries · Women's Health Nurse Practitioner avg: 262
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Mary Saiz, WHCNP filed 211 Medicare Part D claims in 2023 as a Women's Health Nurse Practitioner in Lovington, New Mexico, prescribing 87% generic.

211
Part D claims, 2023
87%
generic prescribing

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.

Mary Saiz, WHCNP's Medicare Part D volume vs every U.S. prescriber

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

211 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 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. 2K+: 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 Mary Saiz, WHCNP?

Quality data not reported

NPI registry status

Active

Issued 12/21/2006

NPI 1538223771

Primary specialty

Women's Health Nurse Practitioner

Mid-sized

9,452 US NPIs in this specialty

Medicare Part D claims

211 19% vs specialty avg

2023 prescription claims

Specialty avg: 262

Specialty distribution in New Mexico

How Women's Health Nurse Practitioner compares to other specialties among New Mexico providers

New Mexico providers

Largest specialties in New Mexico (% of in-state providers)

Behavior Technician - 9.5%Behavior Technician9.5%Case Manager/Care Coordinator - 6.3%Case Manager/Care Coordinator6.3%Mental Health Counselor - 5.1%Mental Health Counselor5.1%Student in an Organized Health Care Education/Training Program - 3.9%Student in an Organized Health Care Education/Training Program3.9%Counselor - 3.8%Counselor3.8%Clinical Social Worker - 3.8%Clinical Social Worker3.8%Women's Health Nurse Practitioner - 0.1%Women's Health Nurse Practitioner0.1%
Largest specialties in New Mexico (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Women's Health Nurse Practitioner. Verify directly:

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).

Mary Saiz, WHCNP appears in the CMS NPPES registry as a Women's Health Nurse Practitioner provider holding WHCNP credentials at 1600 NORTH MAIN, Lovington, NM, 88260, with a listed phone of (575) 396-6611. NPI 1538223771 was issued on 12/21/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Saiz 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 211 prescription claims written by this provider, covering 52 Medicare beneficiaries and totaling roughly $12K in drug spend, split 13% brand-name and 87% generic by claim count. 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.

Women's Health Nurse Practitioner is a mid-sized specialty nationwide, with 9,452 enrolled providers across 55 states and an average of 262 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

1600 NORTH MAIN
Lovington, NM 88260

Provider Details

NPI 1538223771
Specialty Women's Health Nurse Practitioner
Credentials WHCNP
Gender Female
NPI Issued 12/21/2006

Hospital and facility affiliations

Facilities where Mary Saiz, WHCNP bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Nor-Lea Hospital District
Lovington, NM
Critical Access Hospitals
CMS CCN: 321305

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Typical

Mary Saiz, WHCNP - brand share 13.0%
Women's Health Nurse Practitioner average

13% brand-name claims vs 87% generic, on 211 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

211
Total Claims
$12K
Total Drug Cost
52
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
320
Total Day Supply
8,052
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$8K
Generic Drug Cost
$3K
Antibiotic Claims
29

Patient Demographics

Average Patient Age
66.6 years
Avg HCC Risk Score
1.23
Gender Split
100% female / 0% male
Age Distribution
<65: 15, 65-74: 27, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What Mary Saiz, WHCNP 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
Estradiol
30
Sertraline Hcl
28
Oxybutynin Chloride Er
Oxybutynin Chloride
12
Fluconazole
11
Levothyroxine Sodium
11
Premarin
"Estrogens
N/A

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

Women's Health Nurse Practitioner Overview

How Mary Saiz, WHCNP fits within the Women's Health Nurse Practitioner landscape nationally.

9,452
Women's Health Nurse Practitioner Providers in US
55
States with Women's Health Nurse Practitioner
262
Avg Claims per Provider

Mary Saiz, WHCNP's 211 claims are below the specialty average of 262.

Nearby Women's Health Nurse Practitioner Providers in New Mexico

Other clinicians with the same primary specialty enrolled in New Mexico, drawn from the same CMS NPPES roster as Saiz.

Compare Women's Health Nurse Practitioner nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the New Mexico medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Women's Health Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Mary Saiz, WHCNP's specialty?
Mary Saiz, WHCNP specializes in Women's Health Nurse Practitioner and practices in Lovington, New Mexico. Credentials: WHCNP.
How much does Mary Saiz, WHCNP prescribe under Medicare Part D?
In 2023, Mary Saiz, WHCNP wrote 211 Medicare Part D claims totaling $12K in drug costs for 52 beneficiaries.
Where is Mary Saiz, WHCNP located?
Mary Saiz, WHCNP is located at 1600 NORTH MAIN, Lovington, NM, 88260. Phone: (575) 396-6611.
What is Mary Saiz, WHCNP's NPI number?
Mary Saiz, WHCNP's National Provider Identifier (NPI) is 1538223771, issued on 12/21/2006.
Does Mary Saiz, WHCNP prescribe more brand-name or generic drugs?
Mary Saiz, WHCNP's prescribing is 13% brand-name and 87% generic drugs by claim count, with $8K in brand drug costs.
How many Women's Health Nurse Practitioner providers are there in the US?
There are 9,452 Women's Health Nurse Practitioner providers across 55 states in the US. The average Women's Health Nurse Practitioner provider writes 262 Medicare Part D claims per year.
What drugs does Mary Saiz, WHCNP prescribe most often?
Based on 2023 Medicare Part D data, Mary Saiz, WHCNP's most frequently prescribed drugs include Estradiol, Sertraline Hcl, Oxybutynin Chloride Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mary Saiz, WHCNP accept Medicare?
Mary Saiz, WHCNP appears in CMS Medicare data with 211 Part D claims and 52 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mary Saiz, WHCNP's credentials?
Mary Saiz, WHCNP's NPI is 1538223771 with credentials WHCNP. 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

Compiled from official public sources by the PlainDoctor editorial team.