2026 NPPES data Dermatology Physician NPI 1831166958 MD
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Jeffrey Altman, MD

Dermatology Physician in Woodstock, 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 14,610 in Dermatology 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
969
Medicare Part D claims · 437 beneficiaries · Dermatology Physician avg: 729
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$4.6K
227 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Jeffrey Altman, MD filed 969 Medicare Part D claims in 2023 as a Dermatology Physician in Woodstock, Illinois, prescribing 92% generic.

969
Part D claims, 2023
92%
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.

Jeffrey Altman, MD's Medicare Part D volume vs every U.S. prescriber

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

969 Top 25% higher than 75% 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%). This entry sits in this band. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. 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)

Jeffrey Altman, 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 Jeffrey Altman, MD?

Quality data not reported

NPI registry status

Active

Issued 03/07/2006

NPI 1831166958

Primary specialty

Dermatology Physician

Mid-sized

14,610 US NPIs in this specialty

Medicare Part D claims

969 33% vs specialty avg

2023 prescription claims

Specialty avg: 729

Specialty distribution in Illinois

How Dermatology Physician compares to other specialties among Illinois providers

Illinois 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%Dermatology Physician - 0.2%Dermatology Physician0.2%
Largest specialties in Illinois (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Dermatology Physician. Verify directly:

How MIPS and board certification work

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).

Jeffrey Altman, MD appears in the CMS NPPES registry as a Dermatology Physician provider holding MD credentials at 2000 LAKE AVE, Woodstock, IL, 60098, with a listed phone of (815) 337-7100. NPI 1831166958 was issued on 03/07/2006.

Medicare Part D records for calendar year 2023 show 969 prescription claims written by this provider, covering 437 Medicare beneficiaries and totaling roughly $491K in drug spend, split 8% brand-name and 92% generic by claim count.

Dermatology Physician is a mid-sized specialty nationwide, with 14,610 enrolled providers across 53 states and an average of 729 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

2000 LAKE AVE
Woodstock, IL 60098

Provider Details

NPI 1831166958
Specialty Dermatology Physician
Credentials MD
Gender Male
NPI Issued 03/07/2006

Hospital and facility affiliations

Facilities where Jeffrey Altman, 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.

Illinois Dermatology Institute, LLC
Park Ridge, 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 Jeffrey Altman, MD. Source: openpaymentsdata.cms.gov.

Total received

$4.6K

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 Jeffrey Altman, MD. To verify Jeffrey Altman, MD'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 · Generic-heavy

Jeffrey Altman, MD - brand share 8.0%
Dermatology Physician average

8% brand-name claims vs 92% generic, on 969 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.

969
Total Claims
$491K
Total Drug Cost
437
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,057
Total Day Supply
25,147
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$457K
Generic Drug Cost
$34K
Antibiotic Claims
52

Patient Demographics

Average Patient Age
74.2 years
Avg HCC Risk Score
1.17
Gender Split
47% female / 53% male
Age Distribution
<65: 21, 65-74: 222, 75-84: 134, 85+: 60

Top Prescribed Drugs (Medicare Part D)

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

What Jeffrey Altman, 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
Triamcinolone Acetonide
241
Clobetasol Propionate
66
Mupirocin
63
Fluocinonide
45
Ketoconazole
40
Hydrocortisone
33
Betamethasone Dipropionate
28
Prednisone
28
Methotrexate
Methotrexate Sodium
26
Dupixent Pen
Dupilumab
23

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

Dermatology Physician Overview

How Jeffrey Altman, MD fits within the Dermatology Physician landscape nationally.

14,610
Dermatology Physician Providers in US
53
States with Dermatology Physician
729
Avg Claims per Provider

Jeffrey Altman, MD's 969 claims are above the specialty average of 729.

Nearby Dermatology Physician Providers in Illinois

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

Compare Dermatology 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 Dermatology 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 Jeffrey Altman, MD's specialty?
Jeffrey Altman, MD specializes in Dermatology Physician and practices in Woodstock, Illinois. Credentials: MD.
How much does Jeffrey Altman, MD prescribe under Medicare Part D?
In 2023, Jeffrey Altman, MD wrote 969 Medicare Part D claims totaling $491K in drug costs for 437 beneficiaries.
Where is Jeffrey Altman, MD located?
Jeffrey Altman, MD is located at 2000 LAKE AVE, Woodstock, IL, 60098. Phone: (815) 337-7100.
What is Jeffrey Altman, MD's NPI number?
Jeffrey Altman, MD's National Provider Identifier (NPI) is 1831166958, issued on 03/07/2006.
Does Jeffrey Altman, MD prescribe more brand-name or generic drugs?
Jeffrey Altman, MD's prescribing is 8% brand-name and 92% generic drugs by claim count, with $457K in brand drug costs.
How many Dermatology Physician providers are there in the US?
There are 14,610 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 729 Medicare Part D claims per year.
What drugs does Jeffrey Altman, MD prescribe most often?
Based on 2023 Medicare Part D data, Jeffrey Altman, MD's most frequently prescribed drugs include Triamcinolone Acetonide, Clobetasol Propionate, Mupirocin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jeffrey Altman, MD accept Medicare?
Jeffrey Altman, MD appears in CMS Medicare data with 969 Part D claims and 437 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jeffrey Altman, MD's credentials?
Jeffrey Altman, MD's NPI is 1831166958 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

View source datasets and methodology notes
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.