2026 NPPES data Internal Medicine Physician NPI 1871579896 MD
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AMALAKUMAR AUGUSTINE, MD

Internal Medicine Physician in CHESTERFIELD, 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
4K
Medicare Part D claims · 89 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: AMALAKUMAR AUGUSTINE, MD is a Internal Medicine Physician ([object Object]) practicing in CHESTERFIELD, Missouri with a Medicare Part D prescribing footprint of 4K claims across 89 beneficiaries — 8% brand-name prescribing .

What stands out: AMALAKUMAR AUGUSTINE, MD filed 4,353 Medicare Part D claims in 2023 across CHESTERFIELD, Missouri. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

AMALAKUMAR AUGUSTINE, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

AMALAKUMAR AUGUSTINE, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 12/21/2005

NPI 1871579896

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

4,353 60% 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).

AMALAKUMAR AUGUSTINE, MD is a Internal Medicine Physician provider practicing in CHESTERFIELD, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1871579896. 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.

AMALAKUMAR AUGUSTINE, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 224 S WOODS MILL RD, CHESTERFIELD, MO, 63017, with a listed phone of (314) 469-2182. NPI 1871579896 was issued on 12/21/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AUGUSTINE 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 4,353 prescription claims written by this provider, covering 89 Medicare beneficiaries and totaling roughly $328K in drug spend, split 8% brand-name and 92% 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.

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

224 S WOODS MILL RD
CHESTERFIELD, MO 63017

Provider Details

NPI 1871579896
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 12/21/2005

Hospital and facility affiliations

Facilities where AMALAKUMAR AUGUSTINE, MD 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.

STATE OF MISSOURI
FARMINGTON, MO

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

Brand vs generic prescribing mix · Generic-heavy

AMALAKUMAR AUGUSTINE, MD — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 4,353 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.

4,353
Total Claims
$328K
Total Drug Cost
89
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,373
Total Day Supply
115,020
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$161K
Generic Drug Cost
$167K
Antibiotic Claims
57

Patient Demographics

Average Patient Age
60.3 years
Avg HCC Risk Score
1.56
Gender Split
34% female / 66% male
Age Distribution
<65: 53, 65-74: 26, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
318
Metformin Hcl
246
Risperidone
209
Famotidine
202
Levothyroxine Sodium
140
Farxiga
Dapagliflozin Propanediol
138
Lisinopril
130
Carbamazepine
102
Metoprolol Tartrate
94
Lactulose
88

* 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 AMALAKUMAR AUGUSTINE, MD 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

AMALAKUMAR AUGUSTINE, MD's 4,353 claims are above 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 AUGUSTINE.

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

Frequently Asked Questions

What is AMALAKUMAR AUGUSTINE, MD's specialty?
AMALAKUMAR AUGUSTINE, MD specializes in Internal Medicine Physician and practices in CHESTERFIELD, Missouri. Credentials: MD.
How much does AMALAKUMAR AUGUSTINE, MD prescribe under Medicare Part D?
In 2023, AMALAKUMAR AUGUSTINE, MD wrote 4,353 Medicare Part D claims totaling $328K in drug costs for 89 beneficiaries.
Where is AMALAKUMAR AUGUSTINE, MD located?
AMALAKUMAR AUGUSTINE, MD is located at 224 S WOODS MILL RD, CHESTERFIELD, MO, 63017. Phone: (314) 469-2182.
What is AMALAKUMAR AUGUSTINE, MD's NPI number?
AMALAKUMAR AUGUSTINE, MD's National Provider Identifier (NPI) is 1871579896, issued on 12/21/2005.
Does AMALAKUMAR AUGUSTINE, MD prescribe more brand-name or generic drugs?
AMALAKUMAR AUGUSTINE, MD's prescribing is 8% brand-name and 92% generic drugs by claim count, with $161K in brand drug costs.
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 AMALAKUMAR AUGUSTINE, MD prescribe most often?
Based on 2023 Medicare Part D data, AMALAKUMAR AUGUSTINE, MD's most frequently prescribed drugs include Atorvastatin Calcium, Metformin Hcl, Risperidone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does AMALAKUMAR AUGUSTINE, MD accept Medicare?
AMALAKUMAR AUGUSTINE, MD appears in CMS Medicare data with 4,353 Part D claims and 89 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AMALAKUMAR AUGUSTINE, MD's credentials?
AMALAKUMAR AUGUSTINE, MD's NPI is 1871579896 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