2026 NPPES data Internal Medicine Physician NPI 1346232048 M.D., P.T.
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Michael Sams, M.D., P.T.

Internal Medicine Physician in Naperville, Illinois. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 172,858 in Internal Medicine 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
2K
Medicare Part D claims · 427 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$378.86
18 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Michael Sams, M.D., P.T. filed 2,444 Medicare Part D claims in 2023 as a Internal Medicine Physician in Naperville, Illinois, prescribing 88% generic.

2K
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.

Michael Sams, M.D., P.T.'s Medicare Part D volume vs every U.S. prescriber

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

2,444 Top 14% higher than 86% 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)

Michael Sams, M.D., P.T. 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 Michael Sams, M.D., P.T.?

Quality data not reported

NPI registry status

Active

Issued 08/18/2005

NPI 1346232048

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

2,444 10% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Illinois

How Internal Medicine Physician compares to other specialties among Illinois providers

Illinois providers

Largest specialties in Illinois (% of in-state providers)

Clinical Social Worker — 5.2%Clinical Social Worker5.2%Physical Therapist — 5%Physical Therapist5%Mental Health Counselor — 4.5%Mental Health Counselor4.5%Speech-Language Pathologist — 4.2%Speech-Language Pathologist4.2%Student in an Organized Health Care Education/Training Program — 4.2%Student in an Organized Health Care Education/Training Program4.2%Pharmacist — 4.1%Pharmacist4.1%Internal Medicine Physician — 3.6%Internal Medicine Physician3.6%
Largest specialties in Illinois (% of in-state providers)

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).

Michael Sams, M.D., P.T. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D., P.T. credentials at 1020 E OGDEN AVE STE 304, Naperville, IL, 60563, with a listed phone of (630) 268-0200. NPI 1346232048 was issued on 08/18/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Sams 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 2,444 prescription claims written by this provider, covering 427 Medicare beneficiaries and totaling roughly $2.3 million in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 3.6%. 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

1020 E OGDEN AVE STE 304
Naperville, IL 60563

Provider Details

NPI 1346232048
Specialty Internal Medicine Physician
Credentials M.D., P.T.
Gender Male
NPI Issued 08/18/2005

Hospital and facility affiliations

Facilities where Michael Sams, M.D., P.T. 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.

Dupage Medical Group Ltd
Naperville, IL

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 Michael Sams, M.D., P.T.. Source: openpaymentsdata.cms.gov.

Total received

$379

Largest payer

ABBVIE 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.

License & disciplinary context — Illinois IDFPR 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 — they are NOT specific to Michael Sams, M.D., P.T.. To verify Michael Sams, M.D., P.T.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

Michael Sams, M.D., P.T. — brand share 12.0%
Internal Medicine Physician average

12% brand-name claims vs 88% generic, on 2,444 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.

2,444
Total Claims
$2.3M
Total Drug Cost
427
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,655
Total Day Supply
164,487
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$2.2M
Generic Drug Cost
$99K
Opioid Claims
89 (3.6% rate)
Antibiotic Claims
33

Patient Demographics

Average Patient Age
73.2 years
Avg HCC Risk Score
1.73
Gender Split
68% female / 32% male
Age Distribution
<65: 24, 65-74: 217, 75-84: 162, 85+: 24

Top Prescribed Drugs (Medicare Part D)

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

What Michael Sams, M.D., P.T. 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
Prednisone
462
Hydroxychloroquine Sulfate
412
Methotrexate
Methotrexate Sodium
348
Allopurinol
138
Leflunomide
119
Alendronate Sodium
88
Sulfasalazine
88
Tramadol Hcl
60
Mycophenolate Mofetil
55
Omeprazole
47

* 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 Michael Sams, M.D., P.T. 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

Michael Sams, M.D., P.T.'s 2,444 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Illinois

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Illinois medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Michael Sams, M.D., P.T.'s specialty?
Michael Sams, M.D., P.T. specializes in Internal Medicine Physician and practices in Naperville, Illinois. Credentials: M.D., P.T..
How much does Michael Sams, M.D., P.T. prescribe under Medicare Part D?
In 2023, Michael Sams, M.D., P.T. wrote 2,444 Medicare Part D claims totaling $2.3M in drug costs for 427 beneficiaries.
Where is Michael Sams, M.D., P.T. located?
Michael Sams, M.D., P.T. is located at 1020 E OGDEN AVE STE 304, Naperville, IL, 60563. Phone: (630) 268-0200.
What is Michael Sams, M.D., P.T.'s NPI number?
Michael Sams, M.D., P.T.'s National Provider Identifier (NPI) is 1346232048, issued on 08/18/2005.
Does Michael Sams, M.D., P.T. prescribe more brand-name or generic drugs?
Michael Sams, M.D., P.T.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $2.2M in brand drug costs.
Does Michael Sams, M.D., P.T. prescribe opioids?
Yes, Michael Sams, M.D., P.T. had 89 opioid claims in 2023 with an opioid prescribing rate of 3.6%.
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 Michael Sams, M.D., P.T. prescribe most often?
Based on 2023 Medicare Part D data, Michael Sams, M.D., P.T.'s most frequently prescribed drugs include Prednisone, Hydroxychloroquine Sulfate, Methotrexate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Sams, M.D., P.T. accept Medicare?
Michael Sams, M.D., P.T. appears in CMS Medicare data with 2,444 Part D claims and 427 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Sams, M.D., P.T.'s credentials?
Michael Sams, M.D., P.T.'s NPI is 1346232048 with credentials M.D., P.T.. 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

Compiled from official public sources by the PlainDoctor editorial team.