2026 NPPES data Allergy & Immunology Physician NPI 1881960573 M.D.
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CHEN HSING LIN, M.D.

Allergy & Immunology Physician in KATY, Texas. 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
196
Medicare Part D claims · 29 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
37%
generic claims · 63% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.4K
31 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: CHEN HSING LIN, M.D. is a Allergy & Immunology Physician ([object Object]) practicing in KATY, Texas with a Medicare Part D prescribing footprint of 196 claims across 29 beneficiaries — 63% brand-name prescribing . Industry payments of $1.4K across 31 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: CHEN HSING LIN, M.D. filed 196 Medicare Part D claims in 2023 across KATY, Texas. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

CHEN HSING LIN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

CHEN HSING LIN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 03/27/2012

NPI 1881960573

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

196 74% vs specialty avg

2023 prescription claims

Specialty avg: 764

Specialty distribution in Texas

How Allergy & Immunology Physician compares to other specialties among Texas providers

Texas providers

Allergy & Immunology Physician share within Texas

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

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).

CHEN HSING LIN, M.D. is a Allergy & Immunology Physician provider practicing in KATY, Texas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1881960573. 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.

CHEN HSING LIN, M.D. appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding M.D. credentials at 1215 GRAND WEST BLVD STE C4, KATY, TX, 77449, with a listed phone of (281) 886-7440. NPI 1881960573 was issued on 03/27/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LIN 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 196 prescription claims written by this provider, covering 29 Medicare beneficiaries and totaling roughly $2.7 million in drug spend, split 63% brand-name and 37% 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.

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

1215 GRAND WEST BLVD STE C4
KATY, TX 77449

Provider Details

NPI 1881960573
Specialty Allergy & Immunology Physician
Credentials M.D.
Gender Male
NPI Issued 03/27/2012

Hospital and facility affiliations

Facilities where CHEN HSING LIN, 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.

TEXAS ALLERGY GROUP PLLC
KATY, TX
TMH PHYSICIAN ASSOCIATES PLLC
SUGAR LAND, TX

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 CHEN HSING LIN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.4K

Largest payer

Regeneron Healthcare Solutions, 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.

License & disciplinary context — Texas TMB 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 — they are NOT specific to CHEN HSING LIN, M.D.. To verify CHEN HSING LIN, M.D.'s current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Brand-heavy

CHEN HSING LIN, M.D. — brand share 63.0%
Specialty average (est.)

63% brand-name claims vs 37% generic, on 196 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.

196
Total Claims
$2.7M
Total Drug Cost
29
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
247
Total Day Supply
6,728
Brand vs Generic
63% brand / 37% generic
Brand Drug Cost
$2.2M
Generic Drug Cost
$452K

Patient Demographics

Average Patient Age
66.9 years
Avg HCC Risk Score
1.30

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Cuvitru
Immun Glob G(Igg)/Gly/Iga Ov50
27
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
23
Xolair
Omalizumab
18
Ilaris
Canakinumab/Pf
14
Cromolyn Sodium
12

* 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 CHEN HSING LIN, 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

CHEN HSING LIN, M.D.'s 196 claims are below the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Texas

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

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

Frequently Asked Questions

What is CHEN HSING LIN, M.D.'s specialty?
CHEN HSING LIN, M.D. specializes in Allergy & Immunology Physician and practices in KATY, Texas. Credentials: M.D..
How much does CHEN HSING LIN, M.D. prescribe under Medicare Part D?
In 2023, CHEN HSING LIN, M.D. wrote 196 Medicare Part D claims totaling $2.7M in drug costs for 29 beneficiaries.
Where is CHEN HSING LIN, M.D. located?
CHEN HSING LIN, M.D. is located at 1215 GRAND WEST BLVD STE C4, KATY, TX, 77449. Phone: (281) 886-7440.
What is CHEN HSING LIN, M.D.'s NPI number?
CHEN HSING LIN, M.D.'s National Provider Identifier (NPI) is 1881960573, issued on 03/27/2012.
Does CHEN HSING LIN, M.D. prescribe more brand-name or generic drugs?
CHEN HSING LIN, M.D.'s prescribing is 63% brand-name and 37% generic drugs by claim count, with $2.2M 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 CHEN HSING LIN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CHEN HSING LIN, M.D.'s most frequently prescribed drugs include Cuvitru, Trelegy Ellipta, Xolair. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHEN HSING LIN, M.D. accept Medicare?
CHEN HSING LIN, M.D. appears in CMS Medicare data with 196 Part D claims and 29 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHEN HSING LIN, M.D.'s credentials?
CHEN HSING LIN, M.D.'s NPI is 1881960573 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