2026 NPPES data Neurology Physician NPI 1487699880 D.O.
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LOUIS TEODORI, D.O.

Neurology Physician in MERRILLVILLE, 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
5K
Medicare Part D claims · 737 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.8K
77 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

LOUIS TEODORI, D.O. filed 4,762 Medicare Part D claims in 2023 as a Neurology Physician in MERRILLVILLE, Indiana, prescribing 89% generic.

5K
Part D claims, 2023
89%
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.

LOUIS TEODORI, D.O.'s Medicare Part D volume vs every U.S. prescriber

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

4,762 Top 7% higher than 93% 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)

LOUIS TEODORI, D.O. 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 LOUIS TEODORI, D.O.?

Quality data not reported

NPI registry status

Active

Issued 06/19/2006

NPI 1487699880

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

4,762 264% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

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

Specialty board-certification context

Estimated specialty board-certified rate — Neurology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Neurology Physician ABMS/AOA estimate

Est. board-certified rate (Neurology Physician) — ABMS / AOA estimate

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

LOUIS TEODORI, D.O. appears in the CMS NPPES registry as a Neurology Physician provider holding D.O. credentials at 521 E 86TH AVEUNE, MERRILLVILLE, IN, 46410, with a listed phone of (219) 769-0777. NPI 1487699880 was issued on 06/19/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TEODORI 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 4,762 prescription claims written by this provider, covering 737 Medicare beneficiaries and totaling roughly $1.7 million in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 0.5%. 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.

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

521 E 86TH AVEUNE
MERRILLVILLE, IN 46410

Provider Details

NPI 1487699880
Specialty Neurology Physician
Credentials D.O.
Gender Male
NPI Issued 06/19/2006

Hospital and facility affiliations

Facilities where LOUIS TEODORI, D.O. 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.

COMMUNITY CARE NETWORK INC
VALPARAISO, IN

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 LOUIS TEODORI, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$1.8K

Largest payer

Lilly USA, LLC

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

LOUIS TEODORI, D.O. — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 4,762 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.

4,762
Total Claims
$1.7M
Total Drug Cost
737
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
8,442
Total Day Supply
248,419
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$1.4M
Generic Drug Cost
$359K
Opioid Claims
26 (0.5% rate)

Patient Demographics

Average Patient Age
71.3 years
Avg HCC Risk Score
1.65
Gender Split
60% female / 40% male
Age Distribution
<65: 169, 65-74: 234, 75-84: 246, 85+: 88

Top Prescribed Drugs (Medicare Part D)

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

What LOUIS TEODORI, D.O. 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
Donepezil Hcl
547
Gabapentin
304
Memantine Hcl
276
Levetiracetam
213
Carbidopa-Levodopa
Carbidopa/Levodopa
200
Duloxetine Hcl
200
Primidone
198
Clonazepam
146
Tizanidine Hcl
144
Aimovig Autoinjector
Erenumab-Aooe
142

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

Neurology Physician Overview

How LOUIS TEODORI, D.O. 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

LOUIS TEODORI, D.O.'s 4,762 claims are above 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 TEODORI.

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

Frequently Asked Questions

What is LOUIS TEODORI, D.O.'s specialty?
LOUIS TEODORI, D.O. specializes in Neurology Physician and practices in MERRILLVILLE, Indiana. Credentials: D.O..
How much does LOUIS TEODORI, D.O. prescribe under Medicare Part D?
In 2023, LOUIS TEODORI, D.O. wrote 4,762 Medicare Part D claims totaling $1.7M in drug costs for 737 beneficiaries.
Where is LOUIS TEODORI, D.O. located?
LOUIS TEODORI, D.O. is located at 521 E 86TH AVEUNE, MERRILLVILLE, IN, 46410. Phone: (219) 769-0777.
What is LOUIS TEODORI, D.O.'s NPI number?
LOUIS TEODORI, D.O.'s National Provider Identifier (NPI) is 1487699880, issued on 06/19/2006.
Does LOUIS TEODORI, D.O. prescribe more brand-name or generic drugs?
LOUIS TEODORI, D.O.'s prescribing is 11% brand-name and 89% generic drugs by claim count, with $1.4M in brand drug costs.
Does LOUIS TEODORI, D.O. prescribe opioids?
Yes, LOUIS TEODORI, D.O. had 26 opioid claims in 2023 with an opioid prescribing rate of 0.5%.
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 LOUIS TEODORI, D.O. prescribe most often?
Based on 2023 Medicare Part D data, LOUIS TEODORI, D.O.'s most frequently prescribed drugs include Donepezil Hcl, Gabapentin, Memantine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LOUIS TEODORI, D.O. accept Medicare?
LOUIS TEODORI, D.O. appears in CMS Medicare data with 4,762 Part D claims and 737 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LOUIS TEODORI, D.O.'s credentials?
LOUIS TEODORI, D.O.'s NPI is 1487699880 with credentials D.O.. 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