NPI registry status
Active
2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1871521005 M.D.
Verify on CMS → Richard Rapp, M.D.
Endocrinology, Diabetes & Metabolism Physician in Little Rock, Arkansas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 8,078 in Endocrinology, Diabetes & Metabolism Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
226
Medicare Part D claims · 98 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Industry payments
$85.16
1 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Richard Rapp, M.D. filed 226 Medicare Part D claims in 2024 as an Endocrinology, Diabetes & Metabolism Physician in Little Rock, Arkansas.
- 226
- Part D claims, 2024
- $85.16
- industry payments (Sunshine Act)
- ≥48th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Richard Rapp, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1871521005), first enumerated 06/28/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 226 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Reported
Industry payment transparency
$85.16 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1871521005 · Endocrinology, Diabetes & Metabolism Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1871521005
- ENUM-LEGACY 2006
- TAX-MID 8K Endocrinology, Diabetes
- RX-LIGHT 226
- BOOK-THIN 44 in Arkansas
- PHOTO-ENUM Olufunmilayo Onobrak… · 2006
Richard Rapp, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
226 ≥ 48th percentile 48% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Richard Rapp, 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 Richard Rapp, M.D.?
Quality data not reportedPrimary specialty
Endocrinology, Diabetes & Metabolism Physician
Medicare Part D claims
226 92% vs specialty avg
Specialty distribution in Arkansas
How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among Arkansas providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Endocrinology, Diabetes & Metabolism Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1871521005 |
|---|---|
| Specialty | Endocrinology, Diabetes & Metabolism Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/28/2006 |
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 Richard Rapp, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$85
Largest payer
Kyowa Kirin, Inc.
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
226
Total Claims
$28K
Total Drug Cost
98
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 491.967
- Total Day Supply
- 14,607
- Generic Drug Cost
- $3K
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 1.39
- Gender Split
- 50% female / 50% male
- Age Distribution
- <65: 11, 65-74: 44, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Richard Rapp, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Levothyroxine Sodium
Levothyroxine Sodium
28 claims
- Atorvastatin Calcium
Atorvastatin Calcium
22 claims
- Synthroid
Synthroid
18 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
17 claims
- Ezetimibe
Ezetimibe
13 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 28 |
| Atorvastatin Calcium | 22 |
| Synthroid Levothyroxine Sodium | 18 |
| Rosuvastatin Calcium | 17 |
| Ezetimibe | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Endocrinology, Diabetes & Metabolism Physician in AR →
All providers in Arkansas →
Compare specialties →
Endocrinology, Diabetes & Metabolism Physician Overview
How Richard Rapp, M.D. fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.
8,078
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,739
Avg Claims per Provider
Richard Rapp, M.D.'s 226 claims are below the specialty average of 2,739.
Nationwide Endocrinology, Diabetes & Metabolism Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Rapp, both outside Arkansas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Endocrinology, Diabetes & Metabolism Physician Providers in Arkansas
Other clinicians with the same primary specialty enrolled in Arkansas, drawn from the same CMS NPPES roster as Rapp.
One of 44 Endocrinology, Diabetes & Metabolism Physician providers enrolled in Arkansas, 5 are shown here.
Dr. Maher Alesali
MD
White Hall, AR
Dr. Nadine Alex
MD
Rogers, AR
Dr. Eman Alhussain
M.D
Fort Smith, AR
Dr. Sarah Alshami
MD
Little Rock, AR
Dr. Anvitha Ankireddypalli
MD
Conway, AR
Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Richard Rapp, M.D.'s specialty? ▼
Richard Rapp, M.D. specializes in Endocrinology, Diabetes & Metabolism Physician and practices in Little Rock, Arkansas. Credentials: M.D..
How much does Richard Rapp, M.D. prescribe under Medicare Part D? ▼
In 2024, Richard Rapp, M.D. wrote 226 Medicare Part D claims totaling $28K in drug costs for 98 beneficiaries.
Where is Richard Rapp, M.D. located? ▼
Richard Rapp, M.D. is located at 10001 LILE DR, Little Rock, AR, 72205. Phone: (501) 227-8000.
What is Richard Rapp, M.D.'s NPI number? ▼
Richard Rapp, M.D.'s National Provider Identifier (NPI) is 1871521005, issued on 06/28/2006.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US? ▼
There are 8,078 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,739 Medicare Part D claims per year.
What drugs does Richard Rapp, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Richard Rapp, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Synthroid. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Richard Rapp, M.D. accept Medicare? ▼
Richard Rapp, M.D. appears in CMS Medicare data with 226 Part D claims and 98 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Richard Rapp, M.D.'s credentials? ▼
Richard Rapp, M.D.'s NPI is 1871521005 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
View source datasets and methodology notes
- 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.