2026 NPPES data Neurology Physician NPI 1689657900 MD
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G. JOSEPH HERR, MD

Neurology Physician in DANVILLE, 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
588
Medicare Part D claims · 170 beneficiaries · Neurology Physician avg: 1K
MIPS score
57.8315/100
▼ 25 pts below national avg 83.1 · [object Object]
What the federal data reveals: G. JOSEPH HERR, MD is a Neurology Physician ([object Object]) practicing in DANVILLE, Indiana with a Medicare Part D prescribing footprint of 588 claims across 170 beneficiaries . Their CMS MIPS Final Score of 57.8315/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: G. JOSEPH HERR, MD reported a CMS MIPS final score of 57.8315 out of 100, below the 83.1 national average, and filed 588 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

G. JOSEPH HERR, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

G. JOSEPH HERR, MD at a glance

Below national average

NPI registry status

Active

Issued 11/21/2005

NPI 1689657900

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

588 55% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

MIPS final score

57.8315/100 25.268499999999996% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Indiana

How Neurology Physician compares to other specialties among Indiana providers

Indiana providers

Neurology Physician share within Indiana

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

Medicare quality performance — MIPS

G. JOSEPH HERR, MD's 2023 MIPS final score plotted against the Neurology Physician national average

Below national average
MIPS Final Score
57.8315/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Neurology Physician) — 57.8315/100 vs national avg 83.1

0%100%National avg83%57.8%
MIPS final score (Neurology Physician) — 57.8315/100 vs national avg 83.1

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).

G. JOSEPH HERR, MD is a Neurology Physician provider practicing in DANVILLE, Indiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1689657900. 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.

G. JOSEPH HERR, MD appears in the CMS NPPES registry as a Neurology Physician provider holding MD credentials at 100 HOSPITAL LN, DANVILLE, IN, 46122, with a listed phone of (317) 718-4730. NPI 1689657900 was issued on 11/21/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HERR 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 588 prescription claims written by this provider, covering 170 Medicare beneficiaries and totaling roughly $73K in drug spend. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 57.8315/100 for the 2023 performance year (Quality 10.8634, Cost 73.575), compared with the national average of 83.1.

Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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

100 HOSPITAL LN
DANVILLE, IN 46122

Provider Details

NPI 1689657900
Specialty Neurology Physician
Credentials MD
Gender Male
NPI Issued 11/21/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

57.8315
Final Score
Avg: 83.1
10.8634
Quality
73.575
Cost
100
Promoting Interoperability

Reporting: Group practice

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

588
Total Claims
$73K
Total Drug Cost
170
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,354
Total Day Supply
40,460
Generic Drug Cost
$40K

Patient Demographics

Average Patient Age
72.1 years
Avg HCC Risk Score
1.55
Gender Split
64% female / 36% male
Age Distribution
<65: 36, 65-74: 59, 75-84: 49, 85+: 26

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
48
Levetiracetam
42
Gabapentin
34
Memantine Hcl
33
Tizanidine Hcl
31
Sertraline Hcl
29
Carbidopa-Levodopa
Carbidopa/Levodopa
25
Clopidogrel
Clopidogrel Bisulfate
16
Primidone
16
Divalproex Sodium
15

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

Neurology Physician Overview

How G. JOSEPH HERR, MD fits within the Neurology Physician landscape nationally.

19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider

G. JOSEPH HERR, MD's 588 claims are below the specialty average of 1,309.

Nearby Neurology Physician Providers in Indiana

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

Compare Neurology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is G. JOSEPH HERR, MD's specialty?
G. JOSEPH HERR, MD specializes in Neurology Physician and practices in DANVILLE, Indiana. Credentials: MD.
How much does G. JOSEPH HERR, MD prescribe under Medicare Part D?
In 2023, G. JOSEPH HERR, MD wrote 588 Medicare Part D claims totaling $73K in drug costs for 170 beneficiaries.
What is G. JOSEPH HERR, MD's Medicare quality score?
G. JOSEPH HERR, MD has a CMS MIPS Final Score of 57.8315/100 (Quality: 10.8634, Cost: 73.575). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is G. JOSEPH HERR, MD located?
G. JOSEPH HERR, MD is located at 100 HOSPITAL LN, DANVILLE, IN, 46122. Phone: (317) 718-4730.
What is G. JOSEPH HERR, MD's NPI number?
G. JOSEPH HERR, MD's National Provider Identifier (NPI) is 1689657900, issued on 11/21/2005.
How many Neurology Physician providers are there in the US?
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does G. JOSEPH HERR, MD prescribe most often?
Based on 2023 Medicare Part D data, G. JOSEPH HERR, MD's most frequently prescribed drugs include Donepezil Hcl, Levetiracetam, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does G. JOSEPH HERR, MD accept Medicare?
G. JOSEPH HERR, MD appears in CMS Medicare data with 588 Part D claims and 170 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify G. JOSEPH HERR, MD's credentials?
G. JOSEPH HERR, MD's NPI is 1689657900 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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