2026 NPPES data Internal Medicine Physician NPI 1134549447 MD
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RILEY LIPSCHITZ, MD

Internal Medicine Physician in NORTH 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
4K
Medicare Part D claims · 316 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

RILEY LIPSCHITZ, MD filed 4,156 Medicare Part D claims in 2023 as a Internal Medicine Physician in NORTH LITTLE ROCK, Arkansas, prescribing 88% generic.

4K
Part D claims, 2023
88%
generic prescribing
Likely
board-certified (heuristic)

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.

RILEY LIPSCHITZ, MD's Medicare Part D volume vs every U.S. prescriber

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

4,156 Top 8% higher than 92% 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%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 certification likely (heuristic — not verified)

RILEY LIPSCHITZ, 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).

What does the federal data show about RILEY LIPSCHITZ, MD?

Quality data not reported

NPI registry status

Active

Issued 04/25/2014

NPI 1134549447

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

4,156 53% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Arkansas

How Internal Medicine Physician compares to other specialties among Arkansas providers

Arkansas providers

Internal Medicine Physician share within Arkansas

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

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).

RILEY LIPSCHITZ, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 3201 SPRINGHILL DR STE 100, NORTH LITTLE ROCK, AR, 72117, with a listed phone of (501) 955-4530. NPI 1134549447 was issued on 04/25/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LIPSCHITZ 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 4,156 prescription claims written by this provider, covering 316 Medicare beneficiaries and totaling roughly $382K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 2.8%. 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.

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

3201 SPRINGHILL DR STE 100
NORTH LITTLE ROCK, AR 72117

Provider Details

NPI 1134549447
Specialty Internal Medicine Physician
Credentials MD
Gender Female
NPI Issued 04/25/2014

Hospital and facility affiliations

Facilities where RILEY LIPSCHITZ, 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).

Brand vs generic prescribing mix · Typical

RILEY LIPSCHITZ, MD — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 4,156 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.

4,156
Total Claims
$382K
Total Drug Cost
316
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,086
Total Day Supply
206,680
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$295K
Generic Drug Cost
$86K
Opioid Claims
116 (2.8% rate)
Antibiotic Claims
62

Patient Demographics

Average Patient Age
69.0 years
Avg HCC Risk Score
1.75
Gender Split
67% female / 33% male
Age Distribution
<65: 84, 65-74: 127, 75-84: 79, 85+: 26

Top Prescribed Drugs (Medicare Part D)

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

What RILEY LIPSCHITZ, MD 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
Atorvastatin Calcium
269
Gabapentin
203
Losartan Potassium
158
Amlodipine Besylate
126
Omeprazole
114
Furosemide
105
Lisinopril
103
Metformin Hcl
102
Potassium Chloride
96
Pantoprazole Sodium
93

* 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 RILEY LIPSCHITZ, 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

RILEY LIPSCHITZ, MD's 4,156 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Arkansas

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

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

Frequently Asked Questions

What is RILEY LIPSCHITZ, MD's specialty?
RILEY LIPSCHITZ, MD specializes in Internal Medicine Physician and practices in NORTH LITTLE ROCK, Arkansas. Credentials: MD.
How much does RILEY LIPSCHITZ, MD prescribe under Medicare Part D?
In 2023, RILEY LIPSCHITZ, MD wrote 4,156 Medicare Part D claims totaling $382K in drug costs for 316 beneficiaries.
Where is RILEY LIPSCHITZ, MD located?
RILEY LIPSCHITZ, MD is located at 3201 SPRINGHILL DR STE 100, NORTH LITTLE ROCK, AR, 72117. Phone: (501) 955-4530.
What is RILEY LIPSCHITZ, MD's NPI number?
RILEY LIPSCHITZ, MD's National Provider Identifier (NPI) is 1134549447, issued on 04/25/2014.
Does RILEY LIPSCHITZ, MD prescribe more brand-name or generic drugs?
RILEY LIPSCHITZ, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $295K in brand drug costs.
Does RILEY LIPSCHITZ, MD prescribe opioids?
Yes, RILEY LIPSCHITZ, MD had 116 opioid claims in 2023 with an opioid prescribing rate of 2.8%.
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 RILEY LIPSCHITZ, MD prescribe most often?
Based on 2023 Medicare Part D data, RILEY LIPSCHITZ, MD's most frequently prescribed drugs include Atorvastatin Calcium, Gabapentin, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RILEY LIPSCHITZ, MD accept Medicare?
RILEY LIPSCHITZ, MD appears in CMS Medicare data with 4,156 Part D claims and 316 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RILEY LIPSCHITZ, MD's credentials?
RILEY LIPSCHITZ, MD's NPI is 1134549447 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