2026 NPPES data Internal Medicine Physician NPI 1417058959 M.D.
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CHOTCHAI BOONKHAM, M.D.

Internal Medicine Physician in BRIDGETON, 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
978
Medicare Part D claims · 115 beneficiaries · Internal Medicine Physician avg: 3K

What the federal data shows

CHOTCHAI BOONKHAM, M.D. filed 978 Medicare Part D claims in 2023 as a Internal Medicine Physician in BRIDGETON, Missouri.

978
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.

CHOTCHAI BOONKHAM, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

978 Top 25% higher than 75% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 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)

CHOTCHAI BOONKHAM, 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 CHOTCHAI BOONKHAM, M.D.?

Quality data not reported

NPI registry status

Active

Issued 09/26/2006

NPI 1417058959

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

978 64% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Missouri

How Internal Medicine Physician compares to other specialties among Missouri providers

Missouri providers

Internal Medicine Physician share within Missouri

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

Specialty board-certification context

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

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

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

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

CHOTCHAI BOONKHAM, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 3478 BRIDGELAND DR, BRIDGETON, MO, 63044, with a listed phone of (314) 291-3717. NPI 1417058959 was issued on 09/26/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BOONKHAM 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 978 prescription claims written by this provider, covering 115 Medicare beneficiaries and totaling roughly $70K 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

3478 BRIDGELAND DR
BRIDGETON, MO 63044

Provider Details

NPI 1417058959
Specialty Internal Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 09/26/2006

Medicare Part D Prescribing Data

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

978
Total Claims
$70K
Total Drug Cost
115
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,511
Total Day Supply
74,558
Generic Drug Cost
$20K

Patient Demographics

Average Patient Age
78.4 years
Avg HCC Risk Score
1.41
Gender Split
52% female / 48% male

Top Prescribed Drugs (Medicare Part D)

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

What CHOTCHAI BOONKHAM, M.D. 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
Metformin Hcl
72
Levothyroxine Sodium
55
Amlodipine Besylate
49
Simvastatin
33
Montelukast Sodium
32
Finasteride
30
Rosuvastatin Calcium
30
Losartan-Hydrochlorothiazide
Losartan/Hydrochlorothiazide
26
Gabapentin
23
Valsartan-Hydrochlorothiazide
Valsartan/Hydrochlorothiazide
23

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Internal Medicine Physician Overview

How CHOTCHAI BOONKHAM, M.D. fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

CHOTCHAI BOONKHAM, M.D.'s 978 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Missouri

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

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

Frequently Asked Questions

What is CHOTCHAI BOONKHAM, M.D.'s specialty?
CHOTCHAI BOONKHAM, M.D. specializes in Internal Medicine Physician and practices in BRIDGETON, Missouri. Credentials: M.D..
How much does CHOTCHAI BOONKHAM, M.D. prescribe under Medicare Part D?
In 2023, CHOTCHAI BOONKHAM, M.D. wrote 978 Medicare Part D claims totaling $70K in drug costs for 115 beneficiaries.
Where is CHOTCHAI BOONKHAM, M.D. located?
CHOTCHAI BOONKHAM, M.D. is located at 3478 BRIDGELAND DR, BRIDGETON, MO, 63044. Phone: (314) 291-3717.
What is CHOTCHAI BOONKHAM, M.D.'s NPI number?
CHOTCHAI BOONKHAM, M.D.'s National Provider Identifier (NPI) is 1417058959, issued on 09/26/2006.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does CHOTCHAI BOONKHAM, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CHOTCHAI BOONKHAM, M.D.'s most frequently prescribed drugs include Metformin Hcl, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHOTCHAI BOONKHAM, M.D. accept Medicare?
CHOTCHAI BOONKHAM, M.D. appears in CMS Medicare data with 978 Part D claims and 115 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHOTCHAI BOONKHAM, M.D.'s credentials?
CHOTCHAI BOONKHAM, M.D.'s NPI is 1417058959 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