2026 NPPES data Adult Health Nurse Practitioner NPI 1275671802 NP
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ERNEST TAMAJONG, NP

Adult Health Nurse Practitioner in BEAR, Delaware. 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
7K
Medicare Part D claims · 357 beneficiaries · Adult Health Nurse Practitioner avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$28.03
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ERNEST TAMAJONG, NP filed 6,614 Medicare Part D claims in 2023 as a Adult Health Nurse Practitioner in BEAR, Delaware, prescribing 88% generic.

7K
Part D claims, 2023
88%
generic prescribing
$28.03
industry payments (Sunshine Act)

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.

ERNEST TAMAJONG, NP's Medicare Part D volume vs every U.S. prescriber

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

6,614 Top 4% higher than 96% 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 ERNEST TAMAJONG, NP?

Quality data not reported

NPI registry status

Active

Issued 02/03/2007

NPI 1275671802

Primary specialty

Adult Health Nurse Practitioner

Mid-sized

29,492 US NPIs in this specialty

Medicare Part D claims

6,614 451% vs specialty avg

2023 prescription claims

Specialty avg: 1,201

Specialty distribution in Delaware

How Adult Health Nurse Practitioner compares to other specialties among Delaware providers

Delaware providers

Adult Health Nurse Practitioner share within Delaware

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

Specialty board-certification context

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

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

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

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

ERNEST TAMAJONG, NP appears in the CMS NPPES registry as a Adult Health Nurse Practitioner provider holding NP credentials at 2500 WRANGLE HILL RD, BEAR, DE, 19701, with a listed phone of (302) 437-6833. NPI 1275671802 was issued on 02/03/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TAMAJONG 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 6,614 prescription claims written by this provider, covering 357 Medicare beneficiaries and totaling roughly $553K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 1.1%. 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.

Adult Health Nurse Practitioner is a mid-sized specialty nationwide, with 29,492 enrolled providers across 55 states and an average of 1,201 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

2500 WRANGLE HILL RD
BEAR, DE 19701

Provider Details

NPI 1275671802
Specialty Adult Health Nurse Practitioner
Credentials NP
Gender Male
NPI Issued 02/03/2007

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for ERNEST TAMAJONG, NP. Source: openpaymentsdata.cms.gov.

Total received

$28

Largest payer

Otsuka America Pharmaceutical, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

ERNEST TAMAJONG, NP — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 6,614 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.

6,614
Total Claims
$553K
Total Drug Cost
357
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,040
Total Day Supply
262,492
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$452K
Generic Drug Cost
$98K
Opioid Claims
72 (1.1% rate)
Antibiotic Claims
118

Patient Demographics

Average Patient Age
72.9 years
Avg HCC Risk Score
2.85
Gender Split
57% female / 43% male
Age Distribution
<65: 73, 65-74: 116, 75-84: 104, 85+: 64

Top Prescribed Drugs (Medicare Part D)

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

What ERNEST TAMAJONG, NP 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
445
Gabapentin
274
Amlodipine Besylate
267
Furosemide
247
Carvedilol
216
Eliquis
Apixaban
200
Pantoprazole Sodium
177
Sertraline Hcl
154
Losartan Potassium
139
Trazodone Hcl
135

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

Adult Health Nurse Practitioner Overview

How ERNEST TAMAJONG, NP fits within the Adult Health Nurse Practitioner landscape nationally.

29,492
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,201
Avg Claims per Provider

ERNEST TAMAJONG, NP's 6,614 claims are above the specialty average of 1,201.

Nearby Adult Health Nurse Practitioner Providers in Delaware

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

Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is ERNEST TAMAJONG, NP's specialty?
ERNEST TAMAJONG, NP specializes in Adult Health Nurse Practitioner and practices in BEAR, Delaware. Credentials: NP.
How much does ERNEST TAMAJONG, NP prescribe under Medicare Part D?
In 2023, ERNEST TAMAJONG, NP wrote 6,614 Medicare Part D claims totaling $553K in drug costs for 357 beneficiaries.
Where is ERNEST TAMAJONG, NP located?
ERNEST TAMAJONG, NP is located at 2500 WRANGLE HILL RD, BEAR, DE, 19701. Phone: (302) 437-6833.
What is ERNEST TAMAJONG, NP's NPI number?
ERNEST TAMAJONG, NP's National Provider Identifier (NPI) is 1275671802, issued on 02/03/2007.
Does ERNEST TAMAJONG, NP prescribe more brand-name or generic drugs?
ERNEST TAMAJONG, NP's prescribing is 12% brand-name and 88% generic drugs by claim count, with $452K in brand drug costs.
Does ERNEST TAMAJONG, NP prescribe opioids?
Yes, ERNEST TAMAJONG, NP had 72 opioid claims in 2023 with an opioid prescribing rate of 1.1%.
How many Adult Health Nurse Practitioner providers are there in the US?
There are 29,492 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,201 Medicare Part D claims per year.
What drugs does ERNEST TAMAJONG, NP prescribe most often?
Based on 2023 Medicare Part D data, ERNEST TAMAJONG, NP's most frequently prescribed drugs include Atorvastatin Calcium, Gabapentin, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERNEST TAMAJONG, NP accept Medicare?
ERNEST TAMAJONG, NP appears in CMS Medicare data with 6,614 Part D claims and 357 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERNEST TAMAJONG, NP's credentials?
ERNEST TAMAJONG, NP's NPI is 1275671802 with credentials NP. 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