2026 NPPES data Family Medicine Physician NPI 1639532633 D.O.
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Emelia Arquilla, D.O.

Family Medicine Physician in Chicago, 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 147,640 in Family 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 · 151 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
83%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Emelia Arquilla, D.O. filed 1,607 Medicare Part D claims in 2023 as a Family Medicine Physician in Chicago, Illinois, prescribing 83% generic.

2K
Part D claims, 2023
83%
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.

Emelia Arquilla, D.O.'s Medicare Part D volume vs every U.S. prescriber

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

1,607 Top 18% higher than 82% 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%). This entry sits in this band. 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)

Emelia Arquilla, D.O. 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 Emelia Arquilla, D.O.?

Quality data not reported

NPI registry status

Active

Issued 03/29/2016

NPI 1639532633

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

1,607 53% 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

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%Family Medicine Physician - 2.5%Family Medicine Physician2.5%
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 Family Medicine Physician. Verify directly:

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).

Emelia Arquilla, D.O. appears in the CMS NPPES registry as a Family Medicine Physician provider holding D.O. credentials at 1220 S WOOD ST, Chicago, IL, 60608, with a listed phone of (312) 996-2000. NPI 1639532633 was issued on 03/29/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Arquilla 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 1,607 prescription claims written by this provider, covering 151 Medicare beneficiaries and totaling roughly $190K in drug spend, split 16% brand-name and 83% generic by claim count, with an opioid prescribing rate of 4.0%. 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

1220 S WOOD ST
Chicago, IL 60608

Provider Details

NPI 1639532633
Specialty Family Medicine Physician
Credentials D.O.
Gender Female
NPI Issued 03/29/2016

Hospital and facility affiliations

Facilities where Emelia Arquilla, D.O. 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.

The Board OF Trustees OF The University OF Illinois
Chicago, 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 Emelia Arquilla, D.O.. To verify Emelia Arquilla, D.O.'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

Emelia Arquilla, D.O. - brand share 16.0%
Family Medicine Physician average

16% brand-name claims vs 83% generic, on 1,607 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.

1,607
Total Claims
$190K
Total Drug Cost
151
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,060
Total Day Supply
87,852
Brand vs Generic
16% brand / 83% generic
Brand Drug Cost
$162K
Generic Drug Cost
$27K
Opioid Claims
65 (4.0% rate)
Antibiotic Claims
28

Patient Demographics

Average Patient Age
64.1 years
Avg HCC Risk Score
1.61
Gender Split
67% female / 33% male
Age Distribution
<65: 54, 65-74: 73, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What Emelia Arquilla, D.O. 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
Atorvastatin Calcium
130
Gabapentin
79
Lisinopril
72
Albuterol Sulfate Hfa
Albuterol Sulfate
65
Metformin Hcl
49
Amlodipine Besylate
44
Fluticasone Propionate
43
Diclofenac Sodium
42
Hydrochlorothiazide
38
Tramadol Hcl
38

* 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 Emelia Arquilla, D.O. 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

Emelia Arquilla, D.O.'s 1,607 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 Arquilla.

Compare Family 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 Family 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 Emelia Arquilla, D.O.'s specialty?
Emelia Arquilla, D.O. specializes in Family Medicine Physician and practices in Chicago, Illinois. Credentials: D.O..
How much does Emelia Arquilla, D.O. prescribe under Medicare Part D?
In 2023, Emelia Arquilla, D.O. wrote 1,607 Medicare Part D claims totaling $190K in drug costs for 151 beneficiaries.
Where is Emelia Arquilla, D.O. located?
Emelia Arquilla, D.O. is located at 1220 S WOOD ST, Chicago, IL, 60608. Phone: (312) 996-2000.
What is Emelia Arquilla, D.O.'s NPI number?
Emelia Arquilla, D.O.'s National Provider Identifier (NPI) is 1639532633, issued on 03/29/2016.
Does Emelia Arquilla, D.O. prescribe more brand-name or generic drugs?
Emelia Arquilla, D.O.'s prescribing is 16% brand-name and 83% generic drugs by claim count, with $162K in brand drug costs.
Does Emelia Arquilla, D.O. prescribe opioids?
Yes, Emelia Arquilla, D.O. had 65 opioid claims in 2023 with an opioid prescribing rate of 4.0%.
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 Emelia Arquilla, D.O. prescribe most often?
Based on 2023 Medicare Part D data, Emelia Arquilla, D.O.'s most frequently prescribed drugs include Atorvastatin Calcium, Gabapentin, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Emelia Arquilla, D.O. accept Medicare?
Emelia Arquilla, D.O. appears in CMS Medicare data with 1,607 Part D claims and 151 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Emelia Arquilla, D.O.'s credentials?
Emelia Arquilla, D.O.'s NPI is 1639532633 with credentials D.O.. 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.