2026 NPPES data Allergy & Immunology (Internal Medicine) Physician NPI 1396184545 MD
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CHRISTOPHER RIGELL, MD

Allergy & Immunology (Internal Medicine) Physician in SAINT LOUIS, Missouri. 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
36
Medicare Part D claims · 14 beneficiaries · Allergy & Immunology (Internal Medicine) Physician avg: 798
Generic prescribing
58%
generic claims · 42% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: CHRISTOPHER RIGELL, MD is a Allergy & Immunology (Internal Medicine) Physician ([object Object]) practicing in SAINT LOUIS, Missouri with a Medicare Part D prescribing footprint of 36 claims across 14 beneficiaries — 42% brand-name prescribing .

What stands out: CHRISTOPHER RIGELL, MD filed 36 Medicare Part D claims in 2023 across SAINT LOUIS, Missouri. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

CHRISTOPHER RIGELL, MD 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).

CHRISTOPHER RIGELL, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/20/2013

NPI 1396184545

Primary specialty

Allergy & Immunology (Internal Medicine) Physician

Niche

520 US NPIs in this specialty

Medicare Part D claims

36 95% vs specialty avg

2023 prescription claims

Specialty avg: 798

Specialty distribution in Missouri

How Allergy & Immunology (Internal Medicine) Physician compares to other specialties among Missouri providers

Missouri providers

Allergy & Immunology (Internal Medicine) Physician share within Missouri

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

Specialty board-certification context

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

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

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

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

CHRISTOPHER RIGELL, MD is a Allergy & Immunology (Internal Medicine) Physician provider practicing in SAINT LOUIS, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1396184545. 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 RIGELL, MD appears in the CMS NPPES registry as a Allergy & Immunology (Internal Medicine) Physician provider holding MD credentials at 915 N GRAND BLVD, SAINT LOUIS, MO, 63106, with a listed phone of (314) 652-4100. NPI 1396184545 was issued on 06/20/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RIGELL 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 36 prescription claims written by this provider, covering 14 Medicare beneficiaries and totaling roughly $35K in drug spend, split 42% brand-name and 58% 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 (Internal Medicine) Physician is a narrow specialty nationwide, with 520 enrolled providers across 48 states and an average of 798 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

915 N GRAND BLVD
SAINT LOUIS, MO 63106

Provider Details

NPI 1396184545
Specialty Allergy & Immunology (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 06/20/2013

Brand vs generic prescribing mix · Above average

CHRISTOPHER RIGELL, MD — brand share 42.0%
Specialty average (est.)

42% brand-name claims vs 58% generic, on 36 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.

36
Total Claims
$35K
Total Drug Cost
14
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
50
Total Day Supply
1,482
Brand vs Generic
42% brand / 58% generic
Brand Drug Cost
$34K
Generic Drug Cost
$670

Patient Demographics

Average Patient Age
59.2 years
Avg HCC Risk Score
2.57

Allergy & Immunology (Internal Medicine) Physician Overview

How CHRISTOPHER RIGELL, MD fits within the Allergy & Immunology (Internal Medicine) Physician landscape nationally.

520
Allergy & Immunology (Internal Medicine) Physician Providers in US
48
States with Allergy & Immunology (Internal Medicine) Physician
798
Avg Claims per Provider

CHRISTOPHER RIGELL, MD's 36 claims are below the specialty average of 798.

Nearby Allergy & Immunology (Internal Medicine) Physician Providers in Missouri

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

Compare Allergy & Immunology (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHRISTOPHER RIGELL, MD's specialty?
CHRISTOPHER RIGELL, MD specializes in Allergy & Immunology (Internal Medicine) Physician and practices in SAINT LOUIS, Missouri. Credentials: MD.
How much does CHRISTOPHER RIGELL, MD prescribe under Medicare Part D?
In 2023, CHRISTOPHER RIGELL, MD wrote 36 Medicare Part D claims totaling $35K in drug costs for 14 beneficiaries.
Where is CHRISTOPHER RIGELL, MD located?
CHRISTOPHER RIGELL, MD is located at 915 N GRAND BLVD, SAINT LOUIS, MO, 63106. Phone: (314) 652-4100.
What is CHRISTOPHER RIGELL, MD's NPI number?
CHRISTOPHER RIGELL, MD's National Provider Identifier (NPI) is 1396184545, issued on 06/20/2013.
Does CHRISTOPHER RIGELL, MD prescribe more brand-name or generic drugs?
CHRISTOPHER RIGELL, MD's prescribing is 42% brand-name and 58% generic drugs by claim count, with $34K in brand drug costs.
How many Allergy & Immunology (Internal Medicine) Physician providers are there in the US?
There are 520 Allergy & Immunology (Internal Medicine) Physician providers across 48 states in the US. The average Allergy & Immunology (Internal Medicine) Physician provider writes 798 Medicare Part D claims per year.
Does CHRISTOPHER RIGELL, MD accept Medicare?
CHRISTOPHER RIGELL, MD appears in CMS Medicare data with 36 Part D claims and 14 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTOPHER RIGELL, MD's credentials?
CHRISTOPHER RIGELL, MD's NPI is 1396184545 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