2026 NPPES data Geriatric Medicine (Family Medicine) Physician NPI 1891856886 MD
Verify on CMS →

RUSSELL MILLER, MD

Geriatric Medicine (Family Medicine) Physician in SOUTH BEND, Indiana. 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
415
Medicare Part D claims · 19 beneficiaries · Geriatric Medicine (Family Medicine) Physician avg: 5K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: RUSSELL MILLER, MD is a Geriatric Medicine (Family Medicine) Physician ([object Object]) practicing in SOUTH BEND, Indiana with a Medicare Part D prescribing footprint of 415 claims across 19 beneficiaries — 4% brand-name prescribing .

What stands out: RUSSELL MILLER, MD filed 415 Medicare Part D claims in 2023 across SOUTH BEND, Indiana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

RUSSELL MILLER, MD 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).

RUSSELL MILLER, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 12/13/2006

NPI 1891856886

Primary specialty

Geriatric Medicine (Family Medicine) Physician

Niche

1,779 US NPIs in this specialty

Medicare Part D claims

415 91% vs specialty avg

2023 prescription claims

Specialty avg: 4,854

Specialty distribution in Indiana

How Geriatric Medicine (Family Medicine) Physician compares to other specialties among Indiana providers

Indiana providers

Geriatric Medicine (Family Medicine) Physician share within Indiana

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

Specialty board-certification context

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

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

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

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

RUSSELL MILLER, MD is a Geriatric Medicine (Family Medicine) Physician provider practicing in SOUTH BEND, Indiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1891856886. 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.

RUSSELL MILLER, MD appears in the CMS NPPES registry as a Geriatric Medicine (Family Medicine) Physician provider holding MD credentials at 5838 W BRICK RD STE 106, SOUTH BEND, IN, 46628, with a listed phone of (574) 247-1911. NPI 1891856886 was issued on 12/13/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MILLER 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 415 prescription claims written by this provider, covering 19 Medicare beneficiaries and totaling roughly $14K in drug spend, split 4% brand-name and 96% 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.

Geriatric Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 1,779 enrolled providers across 52 states and an average of 4,854 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

5838 W BRICK RD STE 106
SOUTH BEND, IN 46628

Provider Details

NPI 1891856886
Specialty Geriatric Medicine (Family Medicine) Physician
Credentials MD
Gender Male
NPI Issued 12/13/2006

Brand vs generic prescribing mix · Generic-heavy

RUSSELL MILLER, MD — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 415 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.

415
Total Claims
$14K
Total Drug Cost
19
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
415
Total Day Supply
11,008
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$7K
Generic Drug Cost
$8K

Patient Demographics

Average Patient Age
84.8 years
Avg HCC Risk Score
1.69
Age Distribution
<65: 0, 65-74: N/A, 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
Donepezil Hcl
31
Mirtazapine
28
Atorvastatin Calcium
20
Lisinopril
19
Levothyroxine Sodium
18
Trazodone Hcl
16
Potassium Chloride
15
Aripiprazole
14
Escitalopram Oxalate
14
Bumetanide
13

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

Geriatric Medicine (Family Medicine) Physician Overview

How RUSSELL MILLER, MD fits within the Geriatric Medicine (Family Medicine) Physician landscape nationally.

1,779
Geriatric Medicine (Family Medicine) Physician Providers in US
52
States with Geriatric Medicine (Family Medicine) Physician
4,854
Avg Claims per Provider

RUSSELL MILLER, MD's 415 claims are below the specialty average of 4,854.

Nearby Geriatric Medicine (Family Medicine) Physician Providers in Indiana

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

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

Frequently Asked Questions

What is RUSSELL MILLER, MD's specialty?
RUSSELL MILLER, MD specializes in Geriatric Medicine (Family Medicine) Physician and practices in SOUTH BEND, Indiana. Credentials: MD.
How much does RUSSELL MILLER, MD prescribe under Medicare Part D?
In 2023, RUSSELL MILLER, MD wrote 415 Medicare Part D claims totaling $14K in drug costs for 19 beneficiaries.
Where is RUSSELL MILLER, MD located?
RUSSELL MILLER, MD is located at 5838 W BRICK RD STE 106, SOUTH BEND, IN, 46628. Phone: (574) 247-1911.
What is RUSSELL MILLER, MD's NPI number?
RUSSELL MILLER, MD's National Provider Identifier (NPI) is 1891856886, issued on 12/13/2006.
Does RUSSELL MILLER, MD prescribe more brand-name or generic drugs?
RUSSELL MILLER, MD's prescribing is 4% brand-name and 96% generic drugs by claim count, with $7K in brand drug costs.
How many Geriatric Medicine (Family Medicine) Physician providers are there in the US?
There are 1,779 Geriatric Medicine (Family Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Family Medicine) Physician provider writes 4,854 Medicare Part D claims per year.
What drugs does RUSSELL MILLER, MD prescribe most often?
Based on 2023 Medicare Part D data, RUSSELL MILLER, MD's most frequently prescribed drugs include Donepezil Hcl, Mirtazapine, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RUSSELL MILLER, MD accept Medicare?
RUSSELL MILLER, MD appears in CMS Medicare data with 415 Part D claims and 19 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RUSSELL MILLER, MD's credentials?
RUSSELL MILLER, MD's NPI is 1891856886 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