2026 NPPES data Family Nurse Practitioner NPI 1386003192 ARNP
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HAROLD PARKER, ARNP

Family Nurse Practitioner in MARIANNA, Florida. 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
4K
Medicare Part D claims · 113 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

HAROLD PARKER, ARNP filed 3,677 Medicare Part D claims in 2023 as a Family Nurse Practitioner in MARIANNA, Florida, prescribing 91% generic.

4K
Part D claims, 2023
91%
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.

HAROLD PARKER, ARNP's Medicare Part D volume vs every U.S. prescriber

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

3,677 Top 9% higher than 91% 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 HAROLD PARKER, ARNP?

Quality data not reported

NPI registry status

Active

Issued 02/22/2016

NPI 1386003192

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

3,677 201% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Florida

How Family Nurse Practitioner compares to other specialties among Florida providers

Florida providers

Family Nurse Practitioner share within Florida

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

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).

HAROLD PARKER, ARNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding ARNP credentials at SUNLAND CENTER 3700 WILLIAMS DRIVE, MARIANNA, FL, 32446, with a listed phone of (850) 482-9488. NPI 1386003192 was issued on 02/22/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PARKER 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 3,677 prescription claims written by this provider, covering 113 Medicare beneficiaries and totaling roughly $373K in drug spend, split 9% brand-name and 91% 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

SUNLAND CENTER 3700 WILLIAMS DRIVE
MARIANNA, FL 32446

Provider Details

NPI 1386003192
Specialty Family Nurse Practitioner
Credentials ARNP
Gender Male
NPI Issued 02/22/2016

License & disciplinary context — Florida FLDOH 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 ~75K Florida medical licensees in 2023 — they are NOT specific to HAROLD PARKER, ARNP. To verify HAROLD PARKER, ARNP's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH 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 Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

HAROLD PARKER, ARNP — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 3,677 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.

3,677
Total Claims
$373K
Total Drug Cost
113
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,894
Total Day Supply
103,235
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$229K
Generic Drug Cost
$143K
Antibiotic Claims
174

Patient Demographics

Average Patient Age
64.5 years
Avg HCC Risk Score
1.23
Gender Split
40% female / 60% male
Age Distribution
<65: 60, 65-74: 39, 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 HAROLD PARKER, ARNP 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
Lactulose
245
Levetiracetam
191
Atorvastatin Calcium
190
Levothyroxine Sodium
187
Pravastatin Sodium
166
Divalproex Sodium
150
Omeprazole
112
Lisinopril
103
Tamsulosin Hcl
83
Enalapril Maleate
67

* 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 HAROLD PARKER, ARNP 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

HAROLD PARKER, ARNP's 3,677 claims are above the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Florida

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

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

Frequently Asked Questions

What is HAROLD PARKER, ARNP's specialty?
HAROLD PARKER, ARNP specializes in Family Nurse Practitioner and practices in MARIANNA, Florida. Credentials: ARNP.
How much does HAROLD PARKER, ARNP prescribe under Medicare Part D?
In 2023, HAROLD PARKER, ARNP wrote 3,677 Medicare Part D claims totaling $373K in drug costs for 113 beneficiaries.
Where is HAROLD PARKER, ARNP located?
HAROLD PARKER, ARNP is located at SUNLAND CENTER 3700 WILLIAMS DRIVE, MARIANNA, FL, 32446. Phone: (850) 482-9488.
What is HAROLD PARKER, ARNP's NPI number?
HAROLD PARKER, ARNP's National Provider Identifier (NPI) is 1386003192, issued on 02/22/2016.
Does HAROLD PARKER, ARNP prescribe more brand-name or generic drugs?
HAROLD PARKER, ARNP's prescribing is 9% brand-name and 91% generic drugs by claim count, with $229K 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 HAROLD PARKER, ARNP prescribe most often?
Based on 2023 Medicare Part D data, HAROLD PARKER, ARNP's most frequently prescribed drugs include Lactulose, Levetiracetam, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does HAROLD PARKER, ARNP accept Medicare?
HAROLD PARKER, ARNP appears in CMS Medicare data with 3,677 Part D claims and 113 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HAROLD PARKER, ARNP's credentials?
HAROLD PARKER, ARNP's NPI is 1386003192 with credentials ARNP. 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