2026 NPPES data Hospitalist Physician NPI 1811457559 MD
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USMAN SINGIDAS, MD

Hospitalist Physician in ROCKFORD, 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
573
Medicare Part D claims · 175 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

USMAN SINGIDAS, MD filed 573 Medicare Part D claims in 2023 as a Hospitalist Physician in ROCKFORD, Illinois, prescribing 84% generic.

573
Part D claims, 2023
84%
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.

USMAN SINGIDAS, MD's Medicare Part D volume vs every U.S. prescriber

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

573 Top 34% higher than 66% 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%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 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)

USMAN SINGIDAS, MD 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 USMAN SINGIDAS, MD?

Quality data not reported

NPI registry status

Active

Issued 03/20/2019

NPI 1811457559

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

573 35% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in Illinois

How Hospitalist Physician compares to other specialties among Illinois providers

Illinois providers

Hospitalist Physician share within Illinois

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

Specialty board-certification context

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

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

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

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

USMAN SINGIDAS, MD appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD credentials at 5666 E STATE ST, ROCKFORD, IL, 61108, with a listed phone of (815) 381-7715. NPI 1811457559 was issued on 03/20/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SINGIDAS 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 573 prescription claims written by this provider, covering 175 Medicare beneficiaries and totaling roughly $68K in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 3.5%. 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.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

5666 E STATE ST
ROCKFORD, IL 61108

Provider Details

NPI 1811457559
Specialty Hospitalist Physician
Credentials MD
Gender Male
NPI Issued 03/20/2019

Hospital and facility affiliations

Facilities where USMAN SINGIDAS, 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.

OSF MULTI-SPECIALTY GROUP
ROCKFORD, 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 USMAN SINGIDAS, MD. To verify USMAN SINGIDAS, 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.

Brand vs generic prescribing mix · Typical

USMAN SINGIDAS, MD — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 573 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.

573
Total Claims
$68K
Total Drug Cost
175
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,023
Total Day Supply
26,181
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$60K
Generic Drug Cost
$7K
Opioid Claims
20 (3.5% rate)
Antibiotic Claims
75

Patient Demographics

Average Patient Age
72.9 years
Avg HCC Risk Score
2.35
Gender Split
51% female / 49% male
Age Distribution
<65: 32, 65-74: 61, 75-84: 52, 85+: 30

Top Prescribed Drugs (Medicare Part D)

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

What USMAN SINGIDAS, MD 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
Prednisone
32
Atorvastatin Calcium
26
Furosemide
25
Pantoprazole Sodium
25
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
21
Metoprolol Succinate
21
Eliquis
Apixaban
20
Metoprolol Tartrate
20
Spironolactone
20
Amlodipine Besylate
14

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

Hospitalist Physician Overview

How USMAN SINGIDAS, MD fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

USMAN SINGIDAS, MD's 573 claims are below the specialty average of 888.

Nearby Hospitalist Physician Providers in Illinois

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

Compare Hospitalist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is USMAN SINGIDAS, MD's specialty?
USMAN SINGIDAS, MD specializes in Hospitalist Physician and practices in ROCKFORD, Illinois. Credentials: MD.
How much does USMAN SINGIDAS, MD prescribe under Medicare Part D?
In 2023, USMAN SINGIDAS, MD wrote 573 Medicare Part D claims totaling $68K in drug costs for 175 beneficiaries.
Where is USMAN SINGIDAS, MD located?
USMAN SINGIDAS, MD is located at 5666 E STATE ST, ROCKFORD, IL, 61108. Phone: (815) 381-7715.
What is USMAN SINGIDAS, MD's NPI number?
USMAN SINGIDAS, MD's National Provider Identifier (NPI) is 1811457559, issued on 03/20/2019.
Does USMAN SINGIDAS, MD prescribe more brand-name or generic drugs?
USMAN SINGIDAS, MD's prescribing is 16% brand-name and 84% generic drugs by claim count, with $60K in brand drug costs.
Does USMAN SINGIDAS, MD prescribe opioids?
Yes, USMAN SINGIDAS, MD had 20 opioid claims in 2023 with an opioid prescribing rate of 3.5%.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does USMAN SINGIDAS, MD prescribe most often?
Based on 2023 Medicare Part D data, USMAN SINGIDAS, MD's most frequently prescribed drugs include Prednisone, Atorvastatin Calcium, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does USMAN SINGIDAS, MD accept Medicare?
USMAN SINGIDAS, MD appears in CMS Medicare data with 573 Part D claims and 175 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify USMAN SINGIDAS, MD's credentials?
USMAN SINGIDAS, MD's NPI is 1811457559 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