2026 NPPES data Family Medicine Physician NPI 1376998799 MBBS
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JOSEPH PUMMER, MBBS

Family Medicine Physician in WAIMANALO, Hawaii. 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 · 168 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
79%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JOSEPH PUMMER, MBBS filed 2,543 Medicare Part D claims in 2023 as a Family Medicine Physician in WAIMANALO, Hawaii, prescribing 79% generic.

3K
Part D claims, 2023
79%
generic prescribing
Likely
board-certified (heuristic)

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.

JOSEPH PUMMER, MBBS's Medicare Part D volume vs every U.S. prescriber

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

2,543 Top 13% higher than 87% 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

Board certification likely (heuristic — not verified)

JOSEPH PUMMER, MBBS practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about JOSEPH PUMMER, MBBS?

Quality data not reported

NPI registry status

Active

Issued 05/04/2016

NPI 1376998799

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

2,543 26% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Hawaii

How Family Medicine Physician compares to other specialties among Hawaii providers

Hawaii providers

Family Medicine Physician share within Hawaii

1. Family Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Medicine Physician share within Hawaii

Specialty board-certification context

Estimated specialty board-certified rate — Family Medicine Physician (ABMS / AOA reference)

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

Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

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

JOSEPH PUMMER, MBBS appears in the CMS NPPES registry as a Family Medicine Physician provider holding MBBS credentials at 41-1295 KALANIANAOLE HWY, WAIMANALO, HI, 96795, with a listed phone of (808) 259-7948. NPI 1376998799 was issued on 05/04/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PUMMER 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 2,543 prescription claims written by this provider, covering 168 Medicare beneficiaries and totaling roughly $419K in drug spend, split 21% brand-name and 79% 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

41-1295 KALANIANAOLE HWY
WAIMANALO, HI 96795

Provider Details

NPI 1376998799
Specialty Family Medicine Physician
Credentials MBBS
Gender Male
NPI Issued 05/04/2016

Hospital and facility affiliations

Facilities where JOSEPH PUMMER, MBBS 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.

CASTLE PHYSICIAN NETWORK
KAILUA, HI

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 · Typical

JOSEPH PUMMER, MBBS — brand share 21.0%
Specialty average (est.)

21% brand-name claims vs 79% generic, on 2,543 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.

2,543
Total Claims
$419K
Total Drug Cost
168
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,555
Total Day Supply
129,352
Brand vs Generic
21% brand / 79% generic
Brand Drug Cost
$377K
Generic Drug Cost
$41K
Opioid Claims
16 (0.6% rate)
Antibiotic Claims
21

Patient Demographics

Average Patient Age
69.2 years
Avg HCC Risk Score
1.71
Gender Split
40% female / 60% male

Top Prescribed Drugs (Medicare Part D)

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

What JOSEPH PUMMER, MBBS 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
234
Losartan Potassium
142
Amlodipine Besylate
114
Lisinopril
98
Tamsulosin Hcl
78
Albuterol Sulfate Hfa
Albuterol Sulfate
71
Rosuvastatin Calcium
70
Gabapentin
65
Furosemide
63
Jardiance
Empagliflozin
62

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

Family Medicine Physician Overview

How JOSEPH PUMMER, MBBS fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

JOSEPH PUMMER, MBBS's 2,543 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Hawaii

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOSEPH PUMMER, MBBS's specialty?
JOSEPH PUMMER, MBBS specializes in Family Medicine Physician and practices in WAIMANALO, Hawaii. Credentials: MBBS.
How much does JOSEPH PUMMER, MBBS prescribe under Medicare Part D?
In 2023, JOSEPH PUMMER, MBBS wrote 2,543 Medicare Part D claims totaling $419K in drug costs for 168 beneficiaries.
Where is JOSEPH PUMMER, MBBS located?
JOSEPH PUMMER, MBBS is located at 41-1295 KALANIANAOLE HWY, WAIMANALO, HI, 96795. Phone: (808) 259-7948.
What is JOSEPH PUMMER, MBBS's NPI number?
JOSEPH PUMMER, MBBS's National Provider Identifier (NPI) is 1376998799, issued on 05/04/2016.
Does JOSEPH PUMMER, MBBS prescribe more brand-name or generic drugs?
JOSEPH PUMMER, MBBS's prescribing is 21% brand-name and 79% generic drugs by claim count, with $377K in brand drug costs.
Does JOSEPH PUMMER, MBBS prescribe opioids?
Yes, JOSEPH PUMMER, MBBS had 16 opioid claims in 2023 with an opioid prescribing rate of 0.6%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does JOSEPH PUMMER, MBBS prescribe most often?
Based on 2023 Medicare Part D data, JOSEPH PUMMER, MBBS's most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOSEPH PUMMER, MBBS accept Medicare?
JOSEPH PUMMER, MBBS appears in CMS Medicare data with 2,543 Part D claims and 168 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOSEPH PUMMER, MBBS's credentials?
JOSEPH PUMMER, MBBS's NPI is 1376998799 with credentials MBBS. 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