2026 NPPES data Pediatric Allergy/Immunology Physician NPI 1477857415 M.D.
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CHELSEA SCHLEGEL, M.D.

Pediatric Allergy/Immunology Physician in CYPRESS, 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
11
Medicare Part D claims · Pediatric Allergy/Immunology Physician avg: 345

What the federal data shows

CHELSEA SCHLEGEL, M.D. filed 11 Medicare Part D claims in 2023 as a Pediatric Allergy/Immunology Physician in CYPRESS, Texas.

11
Part D claims, 2023

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.

CHELSEA SCHLEGEL, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

11 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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-eligible specialty (heuristic — not verified)

CHELSEA SCHLEGEL, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about CHELSEA SCHLEGEL, M.D.?

Quality data not reported

NPI registry status

Active

Issued 01/05/2011

NPI 1477857415

Primary specialty

Pediatric Allergy/Immunology Physician

Rare

419 US NPIs in this specialty

Medicare Part D claims

11 97% vs specialty avg

2023 prescription claims

Specialty avg: 345

Specialty distribution in Texas

How Pediatric Allergy/Immunology Physician compares to other specialties among Texas providers

Texas providers

Pediatric Allergy/Immunology Physician share within Texas

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Pediatric 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).

CHELSEA SCHLEGEL, M.D. appears in the CMS NPPES registry as a Pediatric Allergy/Immunology Physician provider holding M.D. credentials at 27200 HIGHWAY 290 STE 200, CYPRESS, TX, 77433, with a listed phone of (281) 213-2522. NPI 1477857415 was issued on 01/05/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SCHLEGEL 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 11 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $213 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.

Pediatric Allergy/Immunology Physician is a narrow specialty nationwide, with 419 enrolled providers across 43 states and an average of 345 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

27200 HIGHWAY 290 STE 200
CYPRESS, TX 77433

Provider Details

NPI 1477857415
Specialty Pediatric Allergy/Immunology Physician
Credentials M.D.
Gender Female
NPI Issued 01/05/2011

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 CHELSEA SCHLEGEL, M.D.. To verify CHELSEA SCHLEGEL, 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.

Medicare Part D Prescribing Data

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

11
Total Claims
$213
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
16
Total Day Supply
480
Brand Drug Cost
$0
Generic Drug Cost
$213

Patient Demographics

Average Patient Age
76.5 years
Avg HCC Risk Score
0.77

Pediatric Allergy/Immunology Physician Overview

How CHELSEA SCHLEGEL, M.D. fits within the Pediatric Allergy/Immunology Physician landscape nationally.

419
Pediatric Allergy/Immunology Physician Providers in US
43
States with Pediatric Allergy/Immunology Physician
345
Avg Claims per Provider

CHELSEA SCHLEGEL, M.D.'s 11 claims are below the specialty average of 345.

Nearby Pediatric Allergy/Immunology Physician Providers in Texas

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

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

Frequently Asked Questions

What is CHELSEA SCHLEGEL, M.D.'s specialty?
CHELSEA SCHLEGEL, M.D. specializes in Pediatric Allergy/Immunology Physician and practices in CYPRESS, Texas. Credentials: M.D..
How much does CHELSEA SCHLEGEL, M.D. prescribe under Medicare Part D?
In 2023, CHELSEA SCHLEGEL, M.D. wrote 11 Medicare Part D claims totaling $213 in drug costs for N/A beneficiaries.
Where is CHELSEA SCHLEGEL, M.D. located?
CHELSEA SCHLEGEL, M.D. is located at 27200 HIGHWAY 290 STE 200, CYPRESS, TX, 77433. Phone: (281) 213-2522.
What is CHELSEA SCHLEGEL, M.D.'s NPI number?
CHELSEA SCHLEGEL, M.D.'s National Provider Identifier (NPI) is 1477857415, issued on 01/05/2011.
How many Pediatric Allergy/Immunology Physician providers are there in the US?
There are 419 Pediatric Allergy/Immunology Physician providers across 43 states in the US. The average Pediatric Allergy/Immunology Physician provider writes 345 Medicare Part D claims per year.
Does CHELSEA SCHLEGEL, M.D. accept Medicare?
CHELSEA SCHLEGEL, M.D. appears in CMS Medicare data with 11 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHELSEA SCHLEGEL, M.D.'s credentials?
CHELSEA SCHLEGEL, M.D.'s NPI is 1477857415 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