2026 NPPES data Family Nurse Practitioner NPI 1215431853 APRN/CNP
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CHRISTINA WALKER, APRN/CNP

Family Nurse Practitioner in GRAND FORKS, North Dakota. 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
3K
Medicare Part D claims · 233 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

CHRISTINA WALKER, APRN/CNP filed 3,035 Medicare Part D claims in 2023 as a Family Nurse Practitioner in GRAND FORKS, North Dakota, prescribing 87% generic.

3K
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.

CHRISTINA WALKER, APRN/CNP's Medicare Part D volume vs every U.S. prescriber

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

3,035 Top 11% higher than 89% 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 CHRISTINA WALKER, APRN/CNP?

Quality data not reported

NPI registry status

Active

Issued 03/20/2018

NPI 1215431853

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

3,035 148% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in North Dakota

How Family Nurse Practitioner compares to other specialties among North Dakota providers

North Dakota providers

Family Nurse Practitioner share within North Dakota

1. Family Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Nurse Practitioner share within North Dakota

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Family 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).

CHRISTINA WALKER, APRN/CNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding APRN/CNP credentials at 2100 S COLUMBIA RD STE 114, GRAND FORKS, ND, 58201, with a listed phone of (701) 516-4637. NPI 1215431853 was issued on 03/20/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WALKER 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 3,035 prescription claims written by this provider, covering 233 Medicare beneficiaries and totaling roughly $286K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 6.0%. 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.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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

2100 S COLUMBIA RD STE 114
GRAND FORKS, ND 58201

Provider Details

NPI 1215431853
Specialty Family Nurse Practitioner
Credentials APRN/CNP
Gender Female
NPI Issued 03/20/2018

Brand vs generic prescribing mix · Typical

CHRISTINA WALKER, APRN/CNP — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 3,035 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.

3,035
Total Claims
$286K
Total Drug Cost
233
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,215
Total Day Supply
147,563
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$234K
Generic Drug Cost
$50K
Opioid Claims
181 (6.0% rate)
Antibiotic Claims
118

Patient Demographics

Average Patient Age
70.7 years
Avg HCC Risk Score
1.10
Gender Split
59% female / 41% male
Age Distribution
<65: 44, 65-74: 102, 75-84: 65, 85+: 22

Top Prescribed Drugs (Medicare Part D)

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

What CHRISTINA WALKER, APRN/CNP 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
Atorvastatin Calcium
159
Lisinopril
154
Amlodipine Besylate
114
Levothyroxine Sodium
88
Metoprolol Succinate
83
Oxycodone Hcl
73
Losartan Potassium
69
Gabapentin
66
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
63
Prednisone
59

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

Family Nurse Practitioner Overview

How CHRISTINA WALKER, APRN/CNP fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

CHRISTINA WALKER, APRN/CNP's 3,035 claims are above the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in North Dakota

Other clinicians with the same primary specialty enrolled in North Dakota, drawn from the same CMS NPPES roster as WALKER.

Compare Family Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHRISTINA WALKER, APRN/CNP's specialty?
CHRISTINA WALKER, APRN/CNP specializes in Family Nurse Practitioner and practices in GRAND FORKS, North Dakota. Credentials: APRN/CNP.
How much does CHRISTINA WALKER, APRN/CNP prescribe under Medicare Part D?
In 2023, CHRISTINA WALKER, APRN/CNP wrote 3,035 Medicare Part D claims totaling $286K in drug costs for 233 beneficiaries.
Where is CHRISTINA WALKER, APRN/CNP located?
CHRISTINA WALKER, APRN/CNP is located at 2100 S COLUMBIA RD STE 114, GRAND FORKS, ND, 58201. Phone: (701) 516-4637.
What is CHRISTINA WALKER, APRN/CNP's NPI number?
CHRISTINA WALKER, APRN/CNP's National Provider Identifier (NPI) is 1215431853, issued on 03/20/2018.
Does CHRISTINA WALKER, APRN/CNP prescribe more brand-name or generic drugs?
CHRISTINA WALKER, APRN/CNP's prescribing is 13% brand-name and 87% generic drugs by claim count, with $234K in brand drug costs.
Does CHRISTINA WALKER, APRN/CNP prescribe opioids?
Yes, CHRISTINA WALKER, APRN/CNP had 181 opioid claims in 2023 with an opioid prescribing rate of 6.0%.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does CHRISTINA WALKER, APRN/CNP prescribe most often?
Based on 2023 Medicare Part D data, CHRISTINA WALKER, APRN/CNP's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTINA WALKER, APRN/CNP accept Medicare?
CHRISTINA WALKER, APRN/CNP appears in CMS Medicare data with 3,035 Part D claims and 233 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTINA WALKER, APRN/CNP's credentials?
CHRISTINA WALKER, APRN/CNP's NPI is 1215431853 with credentials APRN/CNP. 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