2026 NPPES data Surgery Physician NPI 1023299666 DO
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ERNEST HANOWELL, DO

Surgery Physician in CLAREMONT, New Hampshire. 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
63
Medicare Part D claims · 24 beneficiaries · Surgery Physician avg: 169
MIPS score
84.7/100
▲ 2 pts above national avg 83.1 · [object Object]
What the federal data reveals: ERNEST HANOWELL, DO is a Surgery Physician ([object Object]) practicing in CLAREMONT, New Hampshire with a Medicare Part D prescribing footprint of 63 claims across 24 beneficiaries . Their CMS MIPS Final Score of 84.7/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: ERNEST HANOWELL, DO reported a CMS MIPS final score of 84.7 out of 100, above the 83.1 national average, and filed 63 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

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

ERNEST HANOWELL, DO at a glance

Near national average

NPI registry status

Active

Issued 11/26/2007

NPI 1023299666

Primary specialty

Surgery Physician

Mid-sized

36,191 US NPIs in this specialty

Medicare Part D claims

63 63% vs specialty avg

2023 prescription claims

Specialty avg: 169

MIPS final score

84.7/100 1.6000000000000085% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in New Hampshire

How Surgery Physician compares to other specialties among New Hampshire providers

New Hampshire providers

Surgery Physician share within New Hampshire

1. Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Surgery Physician share within New Hampshire

Medicare quality performance — MIPS

ERNEST HANOWELL, DO's 2023 MIPS final score plotted against the Surgery Physician national average

Near national average
MIPS Final Score
84.7/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Surgery Physician) — 84.7/100 vs national avg 83.1

0%100%National avg83%84.7%
MIPS final score (Surgery Physician) — 84.7/100 vs national avg 83.1

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 HANOWELL, DO is a Surgery Physician provider practicing in CLAREMONT, New Hampshire, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DO. NPI: 1023299666. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ERNEST HANOWELL, DO appears in the CMS NPPES registry as a Surgery Physician provider holding DO credentials at 243 ELM ST, CLAREMONT, NH, 03743, with a listed phone of (603) 542-6777. NPI 1023299666 was issued on 11/26/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HANOWELL 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 63 prescription claims written by this provider, covering 24 Medicare beneficiaries and totaling roughly $2K in drug spend. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 84.7/100 for the 2023 performance year, compared with the national average of 83.1.

Surgery Physician is a mid-sized specialty nationwide, with 36,191 enrolled providers across 56 states and an average of 169 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

243 ELM ST
CLAREMONT, NH 03743

Provider Details

NPI 1023299666
Specialty Surgery Physician
Credentials DO
Gender Male
NPI Issued 11/26/2007

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

84.7
Final Score
Avg: 83.1
82
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where ERNEST HANOWELL, DO 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.

SPEARE MEMORIAL HOSPITAL
★★★☆☆ 3/5
PLYMOUTH, NH
Critical Access Hospitals
CMS CCN: 301311

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

63
Total Claims
$2K
Total Drug Cost
24
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
142
Total Day Supply
4,019
Brand Drug Cost
$0
Generic Drug Cost
$2K
Antibiotic Claims
11

Patient Demographics

Average Patient Age
72.1 years
Avg HCC Risk Score
1.92
Gender Split
46% female / 54% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Omeprazole
51

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

Surgery Physician Overview

How ERNEST HANOWELL, DO fits within the Surgery Physician landscape nationally.

36,191
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider

ERNEST HANOWELL, DO's 63 claims are below the specialty average of 169.

Nearby Surgery Physician Providers in New Hampshire

Other clinicians with the same primary specialty enrolled in New Hampshire, drawn from the same CMS NPPES roster as HANOWELL.

Compare Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ERNEST HANOWELL, DO's specialty?
ERNEST HANOWELL, DO specializes in Surgery Physician and practices in CLAREMONT, New Hampshire. Credentials: DO.
How much does ERNEST HANOWELL, DO prescribe under Medicare Part D?
In 2023, ERNEST HANOWELL, DO wrote 63 Medicare Part D claims totaling $2K in drug costs for 24 beneficiaries.
What is ERNEST HANOWELL, DO's Medicare quality score?
ERNEST HANOWELL, DO has a CMS MIPS Final Score of 84.7/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ERNEST HANOWELL, DO located?
ERNEST HANOWELL, DO is located at 243 ELM ST, CLAREMONT, NH, 03743. Phone: (603) 542-6777.
What is ERNEST HANOWELL, DO's NPI number?
ERNEST HANOWELL, DO's National Provider Identifier (NPI) is 1023299666, issued on 11/26/2007.
How many Surgery Physician providers are there in the US?
There are 36,191 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
What drugs does ERNEST HANOWELL, DO prescribe most often?
Based on 2023 Medicare Part D data, ERNEST HANOWELL, DO's most frequently prescribed drugs include Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERNEST HANOWELL, DO accept Medicare?
ERNEST HANOWELL, DO appears in CMS Medicare data with 63 Part D claims and 24 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERNEST HANOWELL, DO's credentials?
ERNEST HANOWELL, DO's NPI is 1023299666 with credentials DO. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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