2026 NPPES data Internal Medicine Physician NPI 1437718442 MD
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ELENA BALTAG, MD

Internal Medicine Physician in ARLINGTON HEIGHTS, 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
432
Medicare Part D claims · 210 beneficiaries · Internal Medicine Physician avg: 3K
What the federal data reveals: ELENA BALTAG, MD is a Internal Medicine Physician ([object Object]) practicing in ARLINGTON HEIGHTS, Illinois with a Medicare Part D prescribing footprint of 432 claims across 210 beneficiaries .

What stands out: ELENA BALTAG, MD filed 432 Medicare Part D claims in 2023 across ARLINGTON HEIGHTS, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ELENA BALTAG, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ELENA BALTAG, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/12/2019

NPI 1437718442

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

432 84% 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

Internal Medicine Physician share within Illinois

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

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).

ELENA BALTAG, MD is a Internal Medicine Physician provider practicing in ARLINGTON HEIGHTS, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1437718442. 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.

ELENA BALTAG, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 800 W CENTRAL RD, ARLINGTON HEIGHTS, IL, 60005, with a listed phone of (877) 635-9229. NPI 1437718442 was issued on 06/12/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BALTAG 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 432 prescription claims written by this provider, covering 210 Medicare beneficiaries and totaling roughly $19K in drug spend, with an opioid prescribing rate of 4.9%. 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

800 W CENTRAL RD
ARLINGTON HEIGHTS, IL 60005

Provider Details

NPI 1437718442
Specialty Internal Medicine Physician
Credentials MD
Gender Female
NPI Issued 06/12/2019

Hospital and facility affiliations

Facilities where ELENA BALTAG, 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.

COOK PHYSICIAN SERVICES, P.C.
ELK GROVE VILLAGE, IL
ENDEAVOR HEALTH MEDICAL GROUP
EVANSTON, 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 ELENA BALTAG, MD. To verify ELENA BALTAG, 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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

432
Total Claims
$19K
Total Drug Cost
210
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
540
Total Day Supply
12,150
Generic Drug Cost
$8K
Opioid Claims
21 (4.9% rate)
Antibiotic Claims
78

Patient Demographics

Average Patient Age
78.3 years
Avg HCC Risk Score
2.23
Gender Split
56% female / 44% male
Age Distribution
<65: 12, 65-74: 58, 75-84: 83, 85+: 57

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Pantoprazole Sodium
30
Amlodipine Besylate
29
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
20
Prednisone
19
Furosemide
18
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
14
Atorvastatin Calcium
13

* 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 ELENA BALTAG, MD 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

ELENA BALTAG, MD's 432 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 BALTAG.

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

Frequently Asked Questions

What is ELENA BALTAG, MD's specialty?
ELENA BALTAG, MD specializes in Internal Medicine Physician and practices in ARLINGTON HEIGHTS, Illinois. Credentials: MD.
How much does ELENA BALTAG, MD prescribe under Medicare Part D?
In 2023, ELENA BALTAG, MD wrote 432 Medicare Part D claims totaling $19K in drug costs for 210 beneficiaries.
Where is ELENA BALTAG, MD located?
ELENA BALTAG, MD is located at 800 W CENTRAL RD, ARLINGTON HEIGHTS, IL, 60005. Phone: (877) 635-9229.
What is ELENA BALTAG, MD's NPI number?
ELENA BALTAG, MD's National Provider Identifier (NPI) is 1437718442, issued on 06/12/2019.
Does ELENA BALTAG, MD prescribe opioids?
Yes, ELENA BALTAG, MD had 21 opioid claims in 2023 with an opioid prescribing rate of 4.9%.
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 ELENA BALTAG, MD prescribe most often?
Based on 2023 Medicare Part D data, ELENA BALTAG, MD's most frequently prescribed drugs include Pantoprazole Sodium, Amlodipine Besylate, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ELENA BALTAG, MD accept Medicare?
ELENA BALTAG, MD appears in CMS Medicare data with 432 Part D claims and 210 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ELENA BALTAG, MD's credentials?
ELENA BALTAG, MD's NPI is 1437718442 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

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