2026 NPPES data Allergy & Immunology Physician NPI 1659370708 M.D,
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CHRISTOPHER COPENHAVER, M.D,

Allergy & Immunology Physician in ASHEVILLE, North Carolina. 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
2K
Medicare Part D claims · 425 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
69%
generic claims · 31% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
61.8325/100
▼ 21 pts below national avg 83.1 · [object Object]
Industry payments
$20.2K
101 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: CHRISTOPHER COPENHAVER, M.D, is a Allergy & Immunology Physician ([object Object]) practicing in ASHEVILLE, North Carolina with a Medicare Part D prescribing footprint of 2K claims across 425 beneficiaries — 31% brand-name prescribing . Their CMS MIPS Final Score of 61.8325/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $20.2K across 101 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: CHRISTOPHER COPENHAVER, M.D, reported a CMS MIPS final score of 61.8325 out of 100, below the 83.1 national average, and filed 1,848 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)

CHRISTOPHER COPENHAVER, M.D, 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).

CHRISTOPHER COPENHAVER, M.D, at a glance

Below national average

NPI registry status

Active

Issued 07/20/2005

NPI 1659370708

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

1,848 142% vs specialty avg

2023 prescription claims

Specialty avg: 764

MIPS final score

61.8325/100 21.26749999999999% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in North Carolina

How Allergy & Immunology Physician compares to other specialties among North Carolina providers

North Carolina providers

Allergy & Immunology Physician share within North Carolina

1. Allergy & Immunology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Allergy & Immunology Physician share within North Carolina

Medicare quality performance — MIPS

CHRISTOPHER COPENHAVER, M.D,'s 2023 MIPS final score plotted against the Allergy & Immunology Physician national average

Below national average
MIPS Final Score
61.8325/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Allergy & Immunology Physician) — 61.8325/100 vs national avg 83.1

0%100%National avg83%61.8%
MIPS final score (Allergy & Immunology Physician) — 61.8325/100 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).

CHRISTOPHER COPENHAVER, M.D, is a Allergy & Immunology Physician provider practicing in ASHEVILLE, North Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D,. NPI: 1659370708. 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.

CHRISTOPHER COPENHAVER, M.D, appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding M.D, credentials at 14 MCDOWELL ST, ASHEVILLE, NC, 28801, with a listed phone of (828) 255-3749. NPI 1659370708 was issued on 07/20/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COPENHAVER 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 1,848 prescription claims written by this provider, covering 425 Medicare beneficiaries and totaling roughly $461K in drug spend, split 31% brand-name and 69% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 61.8325/100 for the 2023 performance year (Quality 55.5208, Cost 54.32), compared with the national average of 83.1.

Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 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

14 MCDOWELL ST
ASHEVILLE, NC 28801

Provider Details

NPI 1659370708
Specialty Allergy & Immunology Physician
Credentials M.D,
Gender Male
NPI Issued 07/20/2005

CMS Quality Score (MIPS)

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

61.8325
Final Score
Avg: 83.1
55.5208
Quality
54.32
Cost

Reporting: Individual

Hospital and facility affiliations

Facilities where CHRISTOPHER COPENHAVER, M.D, 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.

ALLERGY PARTNERS PLLC
ASHEVILLE, NC

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

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 CHRISTOPHER COPENHAVER, M.D,. Source: openpaymentsdata.cms.gov.

Total received

$20.2K

Largest payer

AstraZeneca Pharmaceuticals LP

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 · Above average

CHRISTOPHER COPENHAVER, M.D, — brand share 31.0%
Specialty average (est.)

31% brand-name claims vs 69% generic, on 1,848 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.

1,848
Total Claims
$461K
Total Drug Cost
425
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,226
Total Day Supply
91,867
Brand vs Generic
31% brand / 69% generic
Brand Drug Cost
$398K
Generic Drug Cost
$64K
Antibiotic Claims
26

Patient Demographics

Average Patient Age
71.8 years
Avg HCC Risk Score
0.92
Gender Split
70% female / 30% male
Age Distribution
<65: 43, 65-74: 208, 75-84: 149, 85+: 25

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Montelukast Sodium
394
Ipratropium Bromide
186
Azelastine Hcl
175
Fluticasone Propionate
153
Symbicort
Budesonide/Formoterol Fumarate
138
Albuterol Sulfate Hfa
Albuterol Sulfate
98
Epinephrine
76
Omeprazole
66
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
45
Breo Ellipta
Fluticasone/Vilanterol
37

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

Allergy & Immunology Physician Overview

How CHRISTOPHER COPENHAVER, M.D, fits within the Allergy & Immunology Physician landscape nationally.

3,390
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider

CHRISTOPHER COPENHAVER, M.D,'s 1,848 claims are above the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in North Carolina

Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as COPENHAVER.

Compare Allergy & Immunology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHRISTOPHER COPENHAVER, M.D,'s specialty?
CHRISTOPHER COPENHAVER, M.D, specializes in Allergy & Immunology Physician and practices in ASHEVILLE, North Carolina. Credentials: M.D,.
How much does CHRISTOPHER COPENHAVER, M.D, prescribe under Medicare Part D?
In 2023, CHRISTOPHER COPENHAVER, M.D, wrote 1,848 Medicare Part D claims totaling $461K in drug costs for 425 beneficiaries.
What is CHRISTOPHER COPENHAVER, M.D,'s Medicare quality score?
CHRISTOPHER COPENHAVER, M.D, has a CMS MIPS Final Score of 61.8325/100 (Quality: 55.5208, Cost: 54.32). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CHRISTOPHER COPENHAVER, M.D, located?
CHRISTOPHER COPENHAVER, M.D, is located at 14 MCDOWELL ST, ASHEVILLE, NC, 28801. Phone: (828) 255-3749.
What is CHRISTOPHER COPENHAVER, M.D,'s NPI number?
CHRISTOPHER COPENHAVER, M.D,'s National Provider Identifier (NPI) is 1659370708, issued on 07/20/2005.
Does CHRISTOPHER COPENHAVER, M.D, prescribe more brand-name or generic drugs?
CHRISTOPHER COPENHAVER, M.D,'s prescribing is 31% brand-name and 69% generic drugs by claim count, with $398K in brand drug costs.
How many Allergy & Immunology Physician providers are there in the US?
There are 3,390 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does CHRISTOPHER COPENHAVER, M.D, prescribe most often?
Based on 2023 Medicare Part D data, CHRISTOPHER COPENHAVER, M.D,'s most frequently prescribed drugs include Montelukast Sodium, Ipratropium Bromide, Azelastine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTOPHER COPENHAVER, M.D, accept Medicare?
CHRISTOPHER COPENHAVER, M.D, appears in CMS Medicare data with 1,848 Part D claims and 425 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTOPHER COPENHAVER, M.D,'s credentials?
CHRISTOPHER COPENHAVER, M.D,'s NPI is 1659370708 with credentials M.D,. 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