2026 NPPES data Emergency Medicine Physician NPI 1770557662 MD
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WILLIAM CALDWELL, MD

Emergency Medicine Physician in MOSCOW, Idaho. 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 shows

WILLIAM CALDWELL, MD is a Emergency Medicine Physician in MOSCOW, Idaho, listed in the federal CMS National Provider Identifier registry.

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.

Board-eligible specialty (heuristic — not verified)

WILLIAM CALDWELL, 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).

What does the federal data show about WILLIAM CALDWELL, MD?

Quality data not reported

NPI registry status

Active

Issued 02/15/2006

NPI 1770557662

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Specialty distribution in Idaho

How Emergency Medicine Physician compares to other specialties among Idaho providers

Idaho providers

Emergency Medicine Physician share within Idaho

1. Emergency Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Emergency Medicine Physician share within Idaho

Specialty board-certification context

Estimated specialty board-certified rate — Emergency Medicine Physician (ABMS / AOA reference)

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

Est. board-certified rate (Emergency Medicine Physician) — ABMS / AOA estimate

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

WILLIAM CALDWELL, MD is a Emergency Medicine Physician provider practicing in MOSCOW, Idaho, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1770557662. 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.

WILLIAM CALDWELL, MD appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding MD credentials at 623 S MAIN ST, MOSCOW, ID, 83843, with a listed phone of (208) 882-2011. NPI 1770557662 was issued on 02/15/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CALDWELL 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 Emergency Medicine Physician providers operate outside Part D entirely.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

623 S MAIN ST
MOSCOW, ID 83843

Provider Details

NPI 1770557662
Specialty Emergency Medicine Physician
Credentials MD
Gender Male
NPI Issued 02/15/2006

Emergency Medicine Physician Overview

How WILLIAM CALDWELL, MD fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

Nearby Emergency Medicine Physician Providers in Idaho

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

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is WILLIAM CALDWELL, MD's specialty?
WILLIAM CALDWELL, MD specializes in Emergency Medicine Physician and practices in MOSCOW, Idaho. Credentials: MD.
Where is WILLIAM CALDWELL, MD located?
WILLIAM CALDWELL, MD is located at 623 S MAIN ST, MOSCOW, ID, 83843. Phone: (208) 882-2011.
What is WILLIAM CALDWELL, MD's NPI number?
WILLIAM CALDWELL, MD's National Provider Identifier (NPI) is 1770557662, issued on 02/15/2006.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
Does WILLIAM CALDWELL, MD accept Medicare?
WILLIAM CALDWELL, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM CALDWELL, MD's credentials?
WILLIAM CALDWELL, MD's NPI is 1770557662 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.
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