2026 NPPES data Allergy & Immunology Physician NPI 1316937477 M.D.
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ALEX YIP, M.D.

Allergy & Immunology Physician in WILMINGTON, 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
514
Medicare Part D claims · 99 beneficiaries · Allergy & Immunology Physician avg: 764
Industry payments
$1.4K
50 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ALEX YIP, M.D. is a Allergy & Immunology Physician ([object Object]) practicing in WILMINGTON, North Carolina with a Medicare Part D prescribing footprint of 514 claims across 99 beneficiaries . Industry payments of $1.4K across 50 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ALEX YIP, M.D. filed 514 Medicare Part D claims in 2023 across WILMINGTON, North Carolina. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ALEX YIP, M.D. 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).

ALEX YIP, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 10/28/2005

NPI 1316937477

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

514 33% vs specialty avg

2023 prescription claims

Specialty avg: 764

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

Specialty board-certification context

Estimated specialty board-certified rate — Allergy & Immunology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Allergy & Immunology Physician ABMS/AOA estimate

Est. board-certified rate (Allergy & Immunology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Allergy & Immunology 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).

ALEX YIP, M.D. is a Allergy & Immunology Physician provider practicing in WILMINGTON, North Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1316937477. 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.

ALEX YIP, M.D. appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding M.D. credentials at 1017 ASHES DR, WILMINGTON, NC, 28405, with a listed phone of (910) 239-9584. NPI 1316937477 was issued on 10/28/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what YIP 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 514 prescription claims written by this provider, covering 99 Medicare beneficiaries and totaling roughly $97K 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.

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

1017 ASHES DR
WILMINGTON, NC 28405

Provider Details

NPI 1316937477
Specialty Allergy & Immunology Physician
Credentials M.D.
Gender Male
NPI Issued 10/28/2005

Hospital and facility affiliations

Facilities where ALEX YIP, 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
WILMINGTON, 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 ALEX YIP, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.4K

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.

Medicare Part D Prescribing Data

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

514
Total Claims
$97K
Total Drug Cost
99
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
836
Total Day Supply
23,815
Generic Drug Cost
$14K

Patient Demographics

Average Patient Age
67.5 years
Avg HCC Risk Score
0.93
Gender Split
68% female / 32% 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
Fluticasone Propionate
91
Montelukast Sodium
59
Albuterol Sulfate Hfa
Albuterol Sulfate
50
Azelastine Hcl
42
Breo Ellipta
Fluticasone/Vilanterol
33
Symbicort
Budesonide/Formoterol Fumarate
28
Levocetirizine Dihydrochloride
25
Advair Diskus
Fluticasone Propion/Salmeterol
23
Azelastine-Fluticasone
Azelastine/Fluticasone
20
Ipratropium Bromide
15

* 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 ALEX YIP, 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

ALEX YIP, M.D.'s 514 claims are below 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 YIP.

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

Frequently Asked Questions

What is ALEX YIP, M.D.'s specialty?
ALEX YIP, M.D. specializes in Allergy & Immunology Physician and practices in WILMINGTON, North Carolina. Credentials: M.D..
How much does ALEX YIP, M.D. prescribe under Medicare Part D?
In 2023, ALEX YIP, M.D. wrote 514 Medicare Part D claims totaling $97K in drug costs for 99 beneficiaries.
Where is ALEX YIP, M.D. located?
ALEX YIP, M.D. is located at 1017 ASHES DR, WILMINGTON, NC, 28405. Phone: (910) 239-9584.
What is ALEX YIP, M.D.'s NPI number?
ALEX YIP, M.D.'s National Provider Identifier (NPI) is 1316937477, issued on 10/28/2005.
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 ALEX YIP, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ALEX YIP, M.D.'s most frequently prescribed drugs include Fluticasone Propionate, Montelukast Sodium, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALEX YIP, M.D. accept Medicare?
ALEX YIP, M.D. appears in CMS Medicare data with 514 Part D claims and 99 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALEX YIP, M.D.'s credentials?
ALEX YIP, M.D.'s NPI is 1316937477 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.
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