2026 NPPES data Primary Care Nurse Practitioner NPI 1285128090 APRN
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ELIZABETH MARTIN, APRN

Primary Care Nurse Practitioner in BARTLESVILLE, Oklahoma. 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
5K
Medicare Part D claims · 241 beneficiaries · Primary Care Nurse Practitioner avg: 1K
Generic prescribing
70%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ELIZABETH MARTIN, APRN filed 5,315 Medicare Part D claims in 2023 as a Primary Care Nurse Practitioner in BARTLESVILLE, Oklahoma, prescribing 70% generic.

5K
Part D claims, 2023
70%
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.

ELIZABETH MARTIN, APRN's Medicare Part D volume vs every U.S. prescriber

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

5,315 Top 6% higher than 94% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 ELIZABETH MARTIN, APRN?

Quality data not reported

NPI registry status

Active

Issued 06/15/2018

NPI 1285128090

Primary specialty

Primary Care Nurse Practitioner

Mid-sized

10,138 US NPIs in this specialty

Medicare Part D claims

5,315 290% vs specialty avg

2023 prescription claims

Specialty avg: 1,363

Specialty distribution in Oklahoma

How Primary Care Nurse Practitioner compares to other specialties among Oklahoma providers

Oklahoma providers

Primary Care Nurse Practitioner share within Oklahoma

1. Primary Care Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Primary Care Nurse Practitioner share within Oklahoma

Specialty board-certification context

Estimated specialty board-certified rate — Primary Care Nurse Practitioner (ABMS / AOA reference)

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

Est. board-certified rate (Primary Care Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Primary Care Nurse Practitioner) — 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).

ELIZABETH MARTIN, APRN appears in the CMS NPPES registry as a Primary Care Nurse Practitioner provider holding APRN credentials at 226 SE DEBELL AVE, BARTLESVILLE, OK, 74006, with a listed phone of (918) 876-0476. NPI 1285128090 was issued on 06/15/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MARTIN 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 5,315 prescription claims written by this provider, covering 241 Medicare beneficiaries and totaling roughly $748K in drug spend, split 30% brand-name and 70% generic by claim count, with an opioid prescribing rate of 0.6%. 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.

Primary Care Nurse Practitioner is a mid-sized specialty nationwide, with 10,138 enrolled providers across 54 states and an average of 1,363 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

226 SE DEBELL AVE
BARTLESVILLE, OK 74006

Provider Details

NPI 1285128090
Specialty Primary Care Nurse Practitioner
Credentials APRN
Gender Female
NPI Issued 06/15/2018

Hospital and facility affiliations

Facilities where ELIZABETH MARTIN, APRN 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.

NR BARTLESVILLE LLC
BARTLESVILLE, OK

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 · Above average

ELIZABETH MARTIN, APRN — brand share 30.0%
Specialty average (est.)

30% brand-name claims vs 70% generic, on 5,315 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.

5,315
Total Claims
$748K
Total Drug Cost
241
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,364
Total Day Supply
156,311
Brand vs Generic
30% brand / 70% generic
Brand Drug Cost
$696K
Generic Drug Cost
$41K
Opioid Claims
33 (0.6% rate)
Antibiotic Claims
67

Patient Demographics

Average Patient Age
69.9 years
Avg HCC Risk Score
1.29
Gender Split
61% female / 39% male
Age Distribution
<65: 49, 65-74: 114, 75-84: 59, 85+: 19

Top Prescribed Drugs (Medicare Part D)

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

What ELIZABETH MARTIN, APRN 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
Lisinopril
300
Ozempic
Semaglutide
197
Synthroid
Levothyroxine Sodium
190
Montelukast Sodium
176
Losartan Potassium
174
Amlodipine Besylate
168
Metformin Hcl Er
Metformin Hcl
146
Gabapentin
140
Novolog Flexpen
Insulin Aspart
131
Simvastatin
127

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

Primary Care Nurse Practitioner Overview

How ELIZABETH MARTIN, APRN fits within the Primary Care Nurse Practitioner landscape nationally.

10,138
Primary Care Nurse Practitioner Providers in US
54
States with Primary Care Nurse Practitioner
1,363
Avg Claims per Provider

ELIZABETH MARTIN, APRN's 5,315 claims are above the specialty average of 1,363.

Nearby Primary Care Nurse Practitioner Providers in Oklahoma

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

Compare Primary Care Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is ELIZABETH MARTIN, APRN's specialty?
ELIZABETH MARTIN, APRN specializes in Primary Care Nurse Practitioner and practices in BARTLESVILLE, Oklahoma. Credentials: APRN.
How much does ELIZABETH MARTIN, APRN prescribe under Medicare Part D?
In 2023, ELIZABETH MARTIN, APRN wrote 5,315 Medicare Part D claims totaling $748K in drug costs for 241 beneficiaries.
Where is ELIZABETH MARTIN, APRN located?
ELIZABETH MARTIN, APRN is located at 226 SE DEBELL AVE, BARTLESVILLE, OK, 74006. Phone: (918) 876-0476.
What is ELIZABETH MARTIN, APRN's NPI number?
ELIZABETH MARTIN, APRN's National Provider Identifier (NPI) is 1285128090, issued on 06/15/2018.
Does ELIZABETH MARTIN, APRN prescribe more brand-name or generic drugs?
ELIZABETH MARTIN, APRN's prescribing is 30% brand-name and 70% generic drugs by claim count, with $696K in brand drug costs.
Does ELIZABETH MARTIN, APRN prescribe opioids?
Yes, ELIZABETH MARTIN, APRN had 33 opioid claims in 2023 with an opioid prescribing rate of 0.6%.
How many Primary Care Nurse Practitioner providers are there in the US?
There are 10,138 Primary Care Nurse Practitioner providers across 54 states in the US. The average Primary Care Nurse Practitioner provider writes 1,363 Medicare Part D claims per year.
What drugs does ELIZABETH MARTIN, APRN prescribe most often?
Based on 2023 Medicare Part D data, ELIZABETH MARTIN, APRN's most frequently prescribed drugs include Lisinopril, Ozempic, Synthroid. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ELIZABETH MARTIN, APRN accept Medicare?
ELIZABETH MARTIN, APRN appears in CMS Medicare data with 5,315 Part D claims and 241 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ELIZABETH MARTIN, APRN's credentials?
ELIZABETH MARTIN, APRN's NPI is 1285128090 with credentials APRN. 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