2026 NPPES data Family Nurse Practitioner NPI 1174259899 MSN, APRN, FNP, BC
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DEANN LANMAN, MSN, APRN, FNP, BC

Family Nurse Practitioner in TONKAWA, 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
442
Medicare Part D claims · 310 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

DEANN LANMAN, MSN, APRN, FNP, BC filed 442 Medicare Part D claims in 2023 as a Family Nurse Practitioner in TONKAWA, Oklahoma, prescribing 98% generic.

442
Part D claims, 2023
98%
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.

DEANN LANMAN, MSN, APRN, FNP, BC's Medicare Part D volume vs every U.S. prescriber

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

442 Top 38% higher than 62% 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 DEANN LANMAN, MSN, APRN, FNP, BC?

Quality data not reported

NPI registry status

Active

Issued 07/26/2022

NPI 1174259899

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

442 64% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Oklahoma

How Family Nurse Practitioner compares to other specialties among Oklahoma providers

Oklahoma providers

Family Nurse Practitioner share within Oklahoma

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

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).

DEANN LANMAN, MSN, APRN, FNP, BC appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding MSN, APRN, FNP, BC credentials at 16603 W. SOUTH AVE, TONKAWA, OK, 74653, with a listed phone of (580) 542-1188. NPI 1174259899 was issued on 07/26/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LANMAN 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 442 prescription claims written by this provider, covering 310 Medicare beneficiaries and totaling roughly $7K in drug spend, split 2% brand-name and 98% 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.

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

16603 W. SOUTH AVE
TONKAWA, OK 74653

Provider Details

NPI 1174259899
Specialty Family Nurse Practitioner
Credentials MSN, APRN, FNP, BC
Gender Female
NPI Issued 07/26/2022

Brand vs generic prescribing mix · Generic-heavy

DEANN LANMAN, MSN, APRN, FNP, BC — brand share 2.0%
Specialty average (est.)

2% brand-name claims vs 98% generic, on 442 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.

442
Total Claims
$7K
Total Drug Cost
310
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
449
Total Day Supply
4,534
Brand vs Generic
2% brand / 98% generic
Brand Drug Cost
$4K
Generic Drug Cost
$3K
Antibiotic Claims
250

Patient Demographics

Average Patient Age
69.5 years
Avg HCC Risk Score
0.94
Gender Split
69% female / 31% male
Age Distribution
<65: 57, 65-74: 155, 75-84: 77, 85+: 21

Top Prescribed Drugs (Medicare Part D)

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

What DEANN LANMAN, MSN, APRN, FNP, BC 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
Amoxicillin
78
Azithromycin
59
Prednisone
46
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
22
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
17
Cephalexin
16
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
16
Ciprofloxacin Hcl
13
Triamcinolone Acetonide
13
Cefdinir
12

* 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 DEANN LANMAN, MSN, APRN, FNP, BC 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

DEANN LANMAN, MSN, APRN, FNP, BC's 442 claims are below the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Oklahoma

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

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

Frequently Asked Questions

What is DEANN LANMAN, MSN, APRN, FNP, BC's specialty?
DEANN LANMAN, MSN, APRN, FNP, BC specializes in Family Nurse Practitioner and practices in TONKAWA, Oklahoma. Credentials: MSN, APRN, FNP, BC.
How much does DEANN LANMAN, MSN, APRN, FNP, BC prescribe under Medicare Part D?
In 2023, DEANN LANMAN, MSN, APRN, FNP, BC wrote 442 Medicare Part D claims totaling $7K in drug costs for 310 beneficiaries.
Where is DEANN LANMAN, MSN, APRN, FNP, BC located?
DEANN LANMAN, MSN, APRN, FNP, BC is located at 16603 W. SOUTH AVE, TONKAWA, OK, 74653. Phone: (580) 542-1188.
What is DEANN LANMAN, MSN, APRN, FNP, BC's NPI number?
DEANN LANMAN, MSN, APRN, FNP, BC's National Provider Identifier (NPI) is 1174259899, issued on 07/26/2022.
Does DEANN LANMAN, MSN, APRN, FNP, BC prescribe more brand-name or generic drugs?
DEANN LANMAN, MSN, APRN, FNP, BC's prescribing is 2% brand-name and 98% generic drugs by claim count, with $4K in brand drug costs.
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 DEANN LANMAN, MSN, APRN, FNP, BC prescribe most often?
Based on 2023 Medicare Part D data, DEANN LANMAN, MSN, APRN, FNP, BC's most frequently prescribed drugs include Amoxicillin, Azithromycin, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DEANN LANMAN, MSN, APRN, FNP, BC accept Medicare?
DEANN LANMAN, MSN, APRN, FNP, BC appears in CMS Medicare data with 442 Part D claims and 310 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DEANN LANMAN, MSN, APRN, FNP, BC's credentials?
DEANN LANMAN, MSN, APRN, FNP, BC's NPI is 1174259899 with credentials MSN, APRN, FNP, BC. 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