2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1407946973 MD
Verify on CMS →

ANN RIGGS, MD

Geriatric Medicine (Internal Medicine) Physician in LITTLE ROCK, Arkansas. 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
9K
Medicare Part D claims · 498 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$50.33
3 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ANN RIGGS, MD is a Geriatric Medicine (Internal Medicine) Physician ([object Object]) practicing in LITTLE ROCK, Arkansas with a Medicare Part D prescribing footprint of 9K claims across 498 beneficiaries — 12% brand-name prescribing . Industry payments of $50.33 across 3 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ANN RIGGS, MD filed 8,529 Medicare Part D claims in 2023 across LITTLE ROCK, Arkansas. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ANN RIGGS, 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).

ANN RIGGS, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 10/13/2006

NPI 1407946973

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

8,529 92% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

Specialty distribution in Arkansas

How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Arkansas providers

Arkansas providers

Geriatric Medicine (Internal Medicine) Physician share within Arkansas

1. Geriatric Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Internal Medicine) Physician share within Arkansas

Specialty board-certification context

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

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

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

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

ANN RIGGS, MD is a Geriatric Medicine (Internal Medicine) Physician provider practicing in LITTLE ROCK, Arkansas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1407946973. 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.

ANN RIGGS, MD appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding MD credentials at 4301 W MARKHAM ST # 783, LITTLE ROCK, AR, 72205, with a listed phone of (501) 686-8000. NPI 1407946973 was issued on 10/13/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RIGGS 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 8,529 prescription claims written by this provider, covering 498 Medicare beneficiaries and totaling roughly $418K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 1.8%. 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.

Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 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

4301 W MARKHAM ST # 783
LITTLE ROCK, AR 72205

Provider Details

NPI 1407946973
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials MD
Gender Female
NPI Issued 10/13/2006

Hospital and facility affiliations

Facilities where ANN RIGGS, 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.

ARKANSAS HEALTH GROUP
NORTH LITTLE ROCK, AR

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

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for ANN RIGGS, MD. Source: openpaymentsdata.cms.gov.

Total received

$50

Largest payer

Abbott Laboratories

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

ANN RIGGS, MD — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 8,529 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.

8,529
Total Claims
$418K
Total Drug Cost
498
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
11,717
Total Day Supply
307,719
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$268K
Generic Drug Cost
$147K
Opioid Claims
151 (1.8% rate)
Antibiotic Claims
119

Patient Demographics

Average Patient Age
76.4 years
Avg HCC Risk Score
2.18
Gender Split
67% female / 33% male
Age Distribution
<65: 61, 65-74: 156, 75-84: 150, 85+: 131

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
458
Amlodipine Besylate
331
Gabapentin
278
Levothyroxine Sodium
276
Pantoprazole Sodium
244
Eliquis
Apixaban
216
Potassium Chloride
203
Metoprolol Tartrate
196
Mirtazapine
176
Lisinopril
175

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

Geriatric Medicine (Internal Medicine) Physician Overview

How ANN RIGGS, MD fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider

ANN RIGGS, MD's 8,529 claims are above the specialty average of 4,450.

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Arkansas

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

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

Frequently Asked Questions

What is ANN RIGGS, MD's specialty?
ANN RIGGS, MD specializes in Geriatric Medicine (Internal Medicine) Physician and practices in LITTLE ROCK, Arkansas. Credentials: MD.
How much does ANN RIGGS, MD prescribe under Medicare Part D?
In 2023, ANN RIGGS, MD wrote 8,529 Medicare Part D claims totaling $418K in drug costs for 498 beneficiaries.
Where is ANN RIGGS, MD located?
ANN RIGGS, MD is located at 4301 W MARKHAM ST # 783, LITTLE ROCK, AR, 72205. Phone: (501) 686-8000.
What is ANN RIGGS, MD's NPI number?
ANN RIGGS, MD's National Provider Identifier (NPI) is 1407946973, issued on 10/13/2006.
Does ANN RIGGS, MD prescribe more brand-name or generic drugs?
ANN RIGGS, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $268K in brand drug costs.
Does ANN RIGGS, MD prescribe opioids?
Yes, ANN RIGGS, MD had 151 opioid claims in 2023 with an opioid prescribing rate of 1.8%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US?
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does ANN RIGGS, MD prescribe most often?
Based on 2023 Medicare Part D data, ANN RIGGS, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANN RIGGS, MD accept Medicare?
ANN RIGGS, MD appears in CMS Medicare data with 8,529 Part D claims and 498 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANN RIGGS, MD's credentials?
ANN RIGGS, MD's NPI is 1407946973 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