2026 NPPES data Orthotist NPI 1730740721 BA, RBT
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CHRISTOPHER GUEST, BA, RBT

Orthotist in HUNT VALLEY, Maryland. 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.
What the federal data reveals: CHRISTOPHER GUEST, BA, RBT is a Orthotist ([object Object]) practicing in HUNT VALLEY, Maryland .

What stands out: CHRISTOPHER GUEST, BA, RBT specializes in Orthotist and practices in HUNT VALLEY, Maryland, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

CHRISTOPHER GUEST, BA, RBT at a glance

Quality data not reported

NPI registry status

Active

Issued 06/21/2019

NPI 1730740721

Primary specialty

Orthotist

Niche

1,865 US NPIs in this specialty

Specialty distribution in Maryland

How Orthotist compares to other specialties among Maryland providers

Maryland providers

Orthotist share within Maryland

1. Orthotist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Orthotist share within Maryland

Specialty board-certification context

Estimated specialty board-certified rate — Orthotist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Orthotist ABMS/AOA estimate

Est. board-certified rate (Orthotist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Orthotist) — 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 GUEST, BA, RBT is a Orthotist provider practicing in HUNT VALLEY, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: BA, RBT. NPI: 1730740721. 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 GUEST, BA, RBT appears in the CMS NPPES registry as a Orthotist provider holding BA, RBT credentials at 226 SCHILLING CIR STE 170, HUNT VALLEY, MD, 21031, with a listed phone of (410) 448-6400. NPI 1730740721 was issued on 06/21/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GUEST 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Orthotist providers operate outside Part D entirely.

Orthotist is a narrow specialty nationwide, with 1,865 enrolled providers across 53 states and an average of 261 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

226 SCHILLING CIR STE 170
HUNT VALLEY, MD 21031

Provider Details

NPI 1730740721
Specialty Orthotist
Credentials BA, RBT
Gender Male
NPI Issued 06/21/2019

Hospital and facility affiliations

Facilities where CHRISTOPHER GUEST, BA, RBT 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.

UNIVERSITY OF MARYLAND ORTHOPAEDIC ASSOCIATES PA
BALTIMORE, MD

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Orthotist Overview

How CHRISTOPHER GUEST, BA, RBT fits within the Orthotist landscape nationally.

1,865
Orthotist Providers in US
53
States with Orthotist
261
Avg Claims per Provider

Nearby Orthotist Providers in Maryland

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

Compare Orthotist nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHRISTOPHER GUEST, BA, RBT's specialty?
CHRISTOPHER GUEST, BA, RBT specializes in Orthotist and practices in HUNT VALLEY, Maryland. Credentials: BA, RBT.
Where is CHRISTOPHER GUEST, BA, RBT located?
CHRISTOPHER GUEST, BA, RBT is located at 226 SCHILLING CIR STE 170, HUNT VALLEY, MD, 21031. Phone: (410) 448-6400.
What is CHRISTOPHER GUEST, BA, RBT's NPI number?
CHRISTOPHER GUEST, BA, RBT's National Provider Identifier (NPI) is 1730740721, issued on 06/21/2019.
How many Orthotist providers are there in the US?
There are 1,865 Orthotist providers across 53 states in the US. The average Orthotist provider writes 261 Medicare Part D claims per year.
Does CHRISTOPHER GUEST, BA, RBT accept Medicare?
CHRISTOPHER GUEST, BA, RBT appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTOPHER GUEST, BA, RBT's credentials?
CHRISTOPHER GUEST, BA, RBT's NPI is 1730740721 with credentials BA, RBT. 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.
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