2026 NPPES data Family Medicine Physician NPI 1881692275 M.D.
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JENNIFER ATADERO, M.D.

Family Medicine Physician in ALGONQUIN, Illinois. 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
2K
Medicare Part D claims · 162 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: JENNIFER ATADERO, M.D. is a Family Medicine Physician ([object Object]) practicing in ALGONQUIN, Illinois with a Medicare Part D prescribing footprint of 2K claims across 162 beneficiaries — 9% brand-name prescribing .

What stands out: JENNIFER ATADERO, M.D. filed 1,624 Medicare Part D claims in 2023 across ALGONQUIN, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JENNIFER ATADERO, M.D. 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).

JENNIFER ATADERO, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/11/2005

NPI 1881692275

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

1,624 52% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Illinois

How Family Medicine Physician compares to other specialties among Illinois providers

Illinois providers

Family Medicine Physician share within Illinois

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

Specialty board-certification context

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

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

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

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

JENNIFER ATADERO, M.D. is a Family Medicine Physician provider practicing in ALGONQUIN, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1881692275. 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.

JENNIFER ATADERO, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 2220 HUNTINGTON DR N, ALGONQUIN, IL, 60102, with a listed phone of (847) 854-0050. NPI 1881692275 was issued on 07/11/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ATADERO 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 1,624 prescription claims written by this provider, covering 162 Medicare beneficiaries and totaling roughly $100K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 1.0%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

2220 HUNTINGTON DR N
ALGONQUIN, IL 60102

Provider Details

NPI 1881692275
Specialty Family Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 07/11/2005

Hospital and facility affiliations

Facilities where JENNIFER ATADERO, M.D. 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.

ALGONQUIN FAMILY HEALTHCARE PC
ALGONQUIN, 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).

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 JENNIFER ATADERO, M.D.. To verify JENNIFER ATADERO, M.D.'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

JENNIFER ATADERO, M.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 1,624 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.

1,624
Total Claims
$100K
Total Drug Cost
162
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,097
Total Day Supply
120,089
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$71K
Generic Drug Cost
$28K
Opioid Claims
17 (1.0% rate)
Antibiotic Claims
41

Patient Demographics

Average Patient Age
73.2 years
Avg HCC Risk Score
0.70
Gender Split
89% female / 11% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
235
Levothyroxine Sodium
95
Amlodipine Besylate
77
Losartan Potassium
59
Metoprolol Succinate
55
Lisinopril
43
Hydrochlorothiazide
37
Rosuvastatin Calcium
34
Metformin Hcl Er
Metformin Hcl
32
Alendronate Sodium
31

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

Family Medicine Physician Overview

How JENNIFER ATADERO, M.D. fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

JENNIFER ATADERO, M.D.'s 1,624 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Illinois

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

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

Frequently Asked Questions

What is JENNIFER ATADERO, M.D.'s specialty?
JENNIFER ATADERO, M.D. specializes in Family Medicine Physician and practices in ALGONQUIN, Illinois. Credentials: M.D..
How much does JENNIFER ATADERO, M.D. prescribe under Medicare Part D?
In 2023, JENNIFER ATADERO, M.D. wrote 1,624 Medicare Part D claims totaling $100K in drug costs for 162 beneficiaries.
Where is JENNIFER ATADERO, M.D. located?
JENNIFER ATADERO, M.D. is located at 2220 HUNTINGTON DR N, ALGONQUIN, IL, 60102. Phone: (847) 854-0050.
What is JENNIFER ATADERO, M.D.'s NPI number?
JENNIFER ATADERO, M.D.'s National Provider Identifier (NPI) is 1881692275, issued on 07/11/2005.
Does JENNIFER ATADERO, M.D. prescribe more brand-name or generic drugs?
JENNIFER ATADERO, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $71K in brand drug costs.
Does JENNIFER ATADERO, M.D. prescribe opioids?
Yes, JENNIFER ATADERO, M.D. had 17 opioid claims in 2023 with an opioid prescribing rate of 1.0%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does JENNIFER ATADERO, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JENNIFER ATADERO, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JENNIFER ATADERO, M.D. accept Medicare?
JENNIFER ATADERO, M.D. appears in CMS Medicare data with 1,624 Part D claims and 162 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JENNIFER ATADERO, M.D.'s credentials?
JENNIFER ATADERO, M.D.'s NPI is 1881692275 with credentials M.D.. 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