JULIE KLEMENS, M.D.
Allergy & Immunology Physician in LOMBARD, Illinois. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
JULIE KLEMENS, M.D. filed 909 Medicare Part D claims in 2023 as a Allergy & Immunology Physician in LOMBARD, Illinois, prescribing 55% generic.
- 909
- Part D claims, 2023
- 55%
- 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.
JULIE KLEMENS, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
909 Top 25% higher than 75% of 1,370,886 prescribers
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
JULIE KLEMENS, 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).
What does the federal data show about JULIE KLEMENS, M.D.?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in Illinois
How Allergy & Immunology Physician compares to other specialties among Illinois providers
Allergy & Immunology Physician share within Illinois
Allergy & Immunology Physician is one of the more visible NUCC categories in Illinois
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Allergy & Immunology Physician (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Allergy & Immunology Physician ABMS/AOA estimate
Est. board-certified rate (Allergy & Immunology Physician) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Allergy & Immunology Physician US NPIs
Specialty board-certified rate — Allergy & Immunology Physician estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
JULIE KLEMENS, M.D. appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding M.D. credentials at 130 S MAIN ST, LOMBARD, IL, 60148, with a listed phone of (630) 652-0606. NPI 1588708770 was issued on 02/19/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KLEMENS 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 909 prescription claims written by this provider, covering 132 Medicare beneficiaries and totaling roughly $299K in drug spend, split 45% brand-name and 55% generic by claim count. 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.
Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 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
Provider Details
| NPI | 1588708770 |
|---|---|
| Specialty | Allergy & Immunology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 02/19/2007 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm JULIE KLEMENS, M.D.'s current license status, disciplinary history, and board certifications with the Illinois Department of Financial and Professional Regulation in Illinois before relying on this page for a clinical or care decision.
How we sourced this profile
Hospital and facility affiliations
Facilities where JULIE KLEMENS, 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.
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 JULIE KLEMENS, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$719
Largest payer
AstraZeneca Pharmaceuticals LP
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 JULIE KLEMENS, M.D.. To verify JULIE KLEMENS, M.D.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
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 · Above average
45% brand-name claims vs 55% generic, on 909 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.
Prescribing Breakdown
- 30-Day Fills
- 1,449
- Total Day Supply
- 41,506
- Brand vs Generic
- 45% brand / 55% generic
- Brand Drug Cost
- $276K
- Generic Drug Cost
- $23K
- Antibiotic Claims
- 15
Patient Demographics
- Average Patient Age
- 72.8 years
- Avg HCC Risk Score
- 0.99
- Gender Split
- 67% female / 33% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What JULIE KLEMENS, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Montelukast Sodium
Montelukast Sodium
127 claims
- Symbicort
Symbicort
105 claims
- Fluticasone Propio…
Fluticasone Propionate
96 claims
- Azelastine Hcl
Azelastine Hcl
65 claims
- Advair Hfa
Advair Hfa
51 claims
- Albuterol Sulfate … 50
Albuterol Sulfate Hfa
50 claims
- Omeprazole 46
Omeprazole
46 claims
- Flovent Hfa 38
Flovent Hfa
38 claims
| Drug | Claims |
|---|---|
| Montelukast Sodium | 127 |
| Symbicort Budesonide/Formoterol Fumarate | 105 |
| Fluticasone Propionate | 96 |
| Azelastine Hcl | 65 |
| Advair Hfa Fluticasone Propion/Salmeterol | 51 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 50 |
| Omeprazole | 46 |
| Flovent Hfa Fluticasone Propionate | 38 |
| Ipratropium Bromide | 37 |
| Ventolin Hfa Albuterol Sulfate | 19 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Allergy & Immunology Physician Overview
How JULIE KLEMENS, M.D. fits within the Allergy & Immunology Physician landscape nationally.
JULIE KLEMENS, M.D.'s 909 claims are above the specialty average of 764.
Nearby Allergy & Immunology Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as KLEMENS.
Compare Allergy & Immunology Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
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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