PlainDoctor

2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1700831328 M.D
Verify on CMS →

Susana Mascarell, M.D

Endocrinology, Diabetes & Metabolism 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 7,871 in Endocrinology, Diabetes & Metabolism 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
262
Medicare Part D claims · 64 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
21%
generic claims · 69% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
84.6/100
▲ 1 pts above national avg 83.5 · Above neutral
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Susana Mascarell, M.D reported a CMS MIPS final score of 84.6/100 - above the 83.5 national average - and filed 262 Medicare Part D claims in 2023.

84.6/100
MIPS score · +1 vs avg
262
Part D claims, 2023
21%
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.

CMS NPPES provider registry desk

NPI 1700831328 · Endocrinology, Diabetes & Metabolism Physician

NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-INLINE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1700831328
  • ENUM-LEGACY 2006
  • TAX-MID 8K Endocrinology, Diabetes
  • MIPS-INLINE 84.6/100
  • RX-LIGHT 262
  • BOOK-THIN 309 in Illinois
  • PHOTO-FINISH Olayinka Wilhelm · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Susana Mascarell, M.D's MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

85 ≥ 42nd percentile 42% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). This entry sits in this band. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured providers. 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Susana Mascarell, M.D sits

This provider among endocrinology, diabetes & metabolism physician peers

Across the 2,341 endocrinology, diabetes & metabolism physician providers who report both Medicare Part D prescribing and a MIPS quality score, Susana Mascarell, M.D writes more Part D claims than 9% of them and scores higher on MIPS quality than 47% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 15Susana Mascarell, M.D, Part D claim volume, percentile in specialty: 9 · MIPS quality, percentile: 47
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one endocrinology, diabetes & metabolism physician peer from a representative sample of 60; the gold marker is Susana Mascarell, M.D. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Susana Mascarell, M.D practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Susana Mascarell, M.D?

Near national average

NPI registry status

Active

Issued 05/23/2006

NPI 1700831328

Primary specialty

Endocrinology, Diabetes & Metabolism Physician

Mid-sized

7,871 US NPIs in this specialty

Medicare Part D claims

262 90% vs specialty avg

2023 prescription claims

Specialty avg: 2,639

MIPS final score

84.6/100 1.1 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Illinois

How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among Illinois providers

Illinois providers
Clinical Social Worker5.2%Physical Therapist5%Mental Health Counselor4.5%Speech-Language Pathologist4.2%Student in an Organized Heal…4.2%Pharmacist4.1%Endocrinology, Diabetes & Me…0.1%
Largest specialties in Illinois (% of in-state providers)

Medicare quality performance, MIPS

Susana Mascarell, M.D's 2023 MIPS final score plotted against the Endocrinology, Diabetes & Metabolism Physician national average

Near national average
MIPS Final Score
84.6/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%84.6%
MIPS final score (Endocrinology, Diabetes & Metabolism Physician) - 84.6/100 vs national avg 83.5
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).

Practice Address

1901 W HARRISON ST
Chicago, IL 60612
(312) 864-4665

Provider Details

NPI 1700831328
Specialty Endocrinology, Diabetes & Metabolism Physician
Credentials M.D
Gender Female
NPI Issued 05/23/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

84.5729
Final Score
Measured-score avg: 83.5
60.2504
Quality
67.0015
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Susana Mascarell, 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.

Cook County
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 Susana Mascarell, M.D. To verify Susana Mascarell, 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 · Brand-heavy

Susana Mascarell, M.D - brand share 69.0%
Endocrinology, Diabetes & Metabolism Physician average

69% brand-name claims vs 21% generic, on 262 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.

262
Total Claims
$128K
Total Drug Cost
64
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
472
Total Day Supply
13,817
Brand vs Generic
69% brand / 21% generic
Brand Drug Cost
$126K
Generic Drug Cost
$897

Patient Demographics

Average Patient Age
67.3 years
Avg HCC Risk Score
2.16
Gender Split
63% female / 38% male
Age Distribution
<65: 16, 65-74: 39, 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 Susana Mascarell, M.D 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
Trulicity
Dulaglutide
50
Levothyroxine Sodium
 24
Novolin 70-30
Insulin Nph Hum/Reg Insulin Hm
16
Atorvastatin Calcium
 14
Basaglar Kwikpen U-100
"Insulin Glargine
N/A

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

More Endocrinology, Diabetes & Metabolism Physician in IL → All providers in Illinois → Compare specialties →

Endocrinology, Diabetes & Metabolism Physician Overview

How Susana Mascarell, M.D fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.

7,871
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider

Susana Mascarell, M.D's 262 claims are below the specialty average of 2,639.

Nationwide Endocrinology, Diabetes & Metabolism Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Mascarell, both outside Illinois so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (84.6 here).

John Carroll 84.6 WI Maria Linares Valderrama 84.5 CA Olayinka Wilhelm 84.6 NY Safa Hammami 84.6 CA

Same NPPES enumeration year (2006)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

David Ziemer Atlanta, GA Mahmood Mohamadi Oxon Hill, MD Laura Ferries Sheridan, WY Neil Streisfeld Philadelphia, PA

Nearby Endocrinology, Diabetes & Metabolism Physician Providers in Illinois

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

One of 309 Endocrinology, Diabetes & Metabolism Physician providers enrolled in Illinois, 5 are shown here.

Dr. Maha Abboud
MD FACE
Melrose Park, IL
Dr. Jumana Abdelkarim
MD
Springfield, IL
Dr. Toufic Abdo
MD
Champaign, IL
Dr. Issa Abedmahmoud
MD
Herrin, IL
Dr. Makarem Abulimon
M.D.
Springfield, IL

Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Susana Mascarell, M.D's specialty? ▼
Susana Mascarell, M.D specializes in Endocrinology, Diabetes & Metabolism Physician and practices in Chicago, Illinois. Credentials: M.D.
How much does Susana Mascarell, M.D prescribe under Medicare Part D? ▼
In 2023, Susana Mascarell, M.D wrote 262 Medicare Part D claims totaling $128K in drug costs for 64 beneficiaries.
What is Susana Mascarell, M.D's Medicare quality score? ▼
Susana Mascarell, M.D has a CMS MIPS Final Score of 84.6/100 (Quality: 60.3, Cost: 67). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Susana Mascarell, M.D located? ▼
Susana Mascarell, M.D is located at 1901 W HARRISON ST, Chicago, IL, 60612. Phone: (312) 864-4665.
What is Susana Mascarell, M.D's NPI number? ▼
Susana Mascarell, M.D's National Provider Identifier (NPI) is 1700831328, issued on 05/23/2006.
Does Susana Mascarell, M.D prescribe more brand-name or generic drugs? ▼
Susana Mascarell, M.D's prescribing is 69% brand-name and 21% generic drugs by claim count, with $126K in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US? ▼
There are 7,871 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does Susana Mascarell, M.D prescribe most often? ▼
Based on 2023 Medicare Part D data, Susana Mascarell, M.D's most frequently prescribed drugs include Trulicity, Levothyroxine Sodium, Novolin 70-30. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Susana Mascarell, M.D accept Medicare? ▼
Susana Mascarell, M.D appears in CMS Medicare data with 262 Part D claims and 64 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Susana Mascarell, M.D's credentials? ▼
Susana Mascarell, M.D's NPI is 1700831328 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

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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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 editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.