2026 NPPES data Allergy & Immunology Physician NPI 1043650732 MD
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SONIA THOMAS, MD

Allergy & Immunology Physician in DEARBORN, Michigan. 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
273
Medicare Part D claims · 73 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
56%
generic claims · 44% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$179.74
4 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

SONIA THOMAS, MD filed 273 Medicare Part D claims in 2023 as a Allergy & Immunology Physician in DEARBORN, Michigan, prescribing 56% generic.

273
Part D claims, 2023
56%
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.

SONIA THOMAS, MD's Medicare Part D volume vs every U.S. prescriber

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

273 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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)

SONIA THOMAS, MD 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 SONIA THOMAS, MD?

Quality data not reported

NPI registry status

Active

Issued 06/27/2013

NPI 1043650732

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

273 64% vs specialty avg

2023 prescription claims

Specialty avg: 764

Specialty distribution in Michigan

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

Michigan providers

Allergy & Immunology Physician share within Michigan

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

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).

SONIA THOMAS, MD appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding MD credentials at 19855 OUTER DR STE 200, DEARBORN, MI, 48124, with a listed phone of (313) 565-3565. NPI 1043650732 was issued on 06/27/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what THOMAS 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 273 prescription claims written by this provider, covering 73 Medicare beneficiaries and totaling roughly $137K in drug spend, split 44% brand-name and 56% 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

19855 OUTER DR STE 200
DEARBORN, MI 48124

Provider Details

NPI 1043650732
Specialty Allergy & Immunology Physician
Credentials MD
Gender Female
NPI Issued 06/27/2013

Hospital and facility affiliations

Facilities where SONIA THOMAS, MD 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.

DEARBORN ALLERGY AND ASTHMA CLINIC PC
DEARBORN, MI

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 SONIA THOMAS, MD. Source: openpaymentsdata.cms.gov.

Total received

$180

Largest payer

Regeneron Healthcare Solutions, Inc.

Most common payment type

Education

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 — Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 — they are NOT specific to SONIA THOMAS, MD. To verify SONIA THOMAS, MD's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM 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 Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

SONIA THOMAS, MD — brand share 44.0%
Specialty average (est.)

44% brand-name claims vs 56% generic, on 273 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.

273
Total Claims
$137K
Total Drug Cost
73
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
426
Total Day Supply
12,093
Brand vs Generic
44% brand / 56% generic
Brand Drug Cost
$130K
Generic Drug Cost
$6K

Patient Demographics

Average Patient Age
70.1 years
Avg HCC Risk Score
1.07
Gender Split
66% female / 34% male

Top Prescribed Drugs (Medicare Part D)

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

What SONIA THOMAS, MD 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
Montelukast Sodium
42
Fluticasone Propionate
36
Azelastine Hcl
29
Albuterol Sulfate Hfa
Albuterol Sulfate
21
Symbicort
Budesonide/Formoterol Fumarate
19
Qvar Redihaler
Beclomethasone Dipropionate
17
Prednisone
15
Epinephrine
12
Dupixent Syringe
Dupilumab
11
Fluticasone-Salmeterol
Fluticasone Propion/Salmeterol
11

* 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 SONIA THOMAS, MD 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

SONIA THOMAS, MD's 273 claims are below the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Michigan

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

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

Frequently Asked Questions

What is SONIA THOMAS, MD's specialty?
SONIA THOMAS, MD specializes in Allergy & Immunology Physician and practices in DEARBORN, Michigan. Credentials: MD.
How much does SONIA THOMAS, MD prescribe under Medicare Part D?
In 2023, SONIA THOMAS, MD wrote 273 Medicare Part D claims totaling $137K in drug costs for 73 beneficiaries.
Where is SONIA THOMAS, MD located?
SONIA THOMAS, MD is located at 19855 OUTER DR STE 200, DEARBORN, MI, 48124. Phone: (313) 565-3565.
What is SONIA THOMAS, MD's NPI number?
SONIA THOMAS, MD's National Provider Identifier (NPI) is 1043650732, issued on 06/27/2013.
Does SONIA THOMAS, MD prescribe more brand-name or generic drugs?
SONIA THOMAS, MD's prescribing is 44% brand-name and 56% generic drugs by claim count, with $130K 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 SONIA THOMAS, MD prescribe most often?
Based on 2023 Medicare Part D data, SONIA THOMAS, MD's most frequently prescribed drugs include Montelukast Sodium, Fluticasone Propionate, Azelastine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SONIA THOMAS, MD accept Medicare?
SONIA THOMAS, MD appears in CMS Medicare data with 273 Part D claims and 73 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SONIA THOMAS, MD's credentials?
SONIA THOMAS, MD's NPI is 1043650732 with credentials MD. 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