2026 NPPES data Pulmonary Disease Physician NPI 1780648873 M.D.
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ANAS NAHHAS, M.D.

Pulmonary Disease Physician in CHICAGO RIDGE, 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
1K
Medicare Part D claims · 207 beneficiaries · Pulmonary Disease Physician avg: 1K
Generic prescribing
46%
generic claims · 54% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.6K
121 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ANAS NAHHAS, M.D. filed 1,083 Medicare Part D claims in 2023 as a Pulmonary Disease Physician in CHICAGO RIDGE, Illinois, prescribing 46% generic.

1K
Part D claims, 2023
46%
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.

ANAS NAHHAS, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,083 Top 24% higher than 76% 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%). This entry sits in this band. 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)

ANAS NAHHAS, 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 ANAS NAHHAS, M.D.?

Quality data not reported

NPI registry status

Active

Issued 04/14/2006

NPI 1780648873

Primary specialty

Pulmonary Disease Physician

Mid-sized

9,271 US NPIs in this specialty

Medicare Part D claims

1,083 26% vs specialty avg

2023 prescription claims

Specialty avg: 1,457

Specialty distribution in Illinois

How Pulmonary Disease Physician compares to other specialties among Illinois providers

Illinois providers

Pulmonary Disease Physician share within Illinois

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

Specialty board-certification context

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

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

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

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

ANAS NAHHAS, M.D. appears in the CMS NPPES registry as a Pulmonary Disease Physician provider holding M.D. credentials at 10604 SOUTHWEST HIGHWAY, CHICAGO RIDGE, IL, 60415, with a listed phone of (708) 371-8006. NPI 1780648873 was issued on 04/14/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NAHHAS 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 1,083 prescription claims written by this provider, covering 207 Medicare beneficiaries and totaling roughly $821K in drug spend, split 54% brand-name and 46% 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.

Pulmonary Disease Physician is a mid-sized specialty nationwide, with 9,271 enrolled providers across 53 states and an average of 1,457 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

10604 SOUTHWEST HIGHWAY
CHICAGO RIDGE, IL 60415

Provider Details

NPI 1780648873
Specialty Pulmonary Disease Physician
Credentials M.D.
Gender Male
NPI Issued 04/14/2006

Hospital and facility affiliations

Facilities where ANAS NAHHAS, 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.

MIDWEST PULMONARY CRITICAL CARE AND SLEEP CONSULTANTS LLC
PALOS HEIGHTS, 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).

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 ANAS NAHHAS, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$2.6K

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 ANAS NAHHAS, M.D.. To verify ANAS NAHHAS, 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

ANAS NAHHAS, M.D. — brand share 54.0%
Specialty average (est.)

54% brand-name claims vs 46% generic, on 1,083 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.

1,083
Total Claims
$821K
Total Drug Cost
207
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,562
Total Day Supply
41,880
Brand vs Generic
54% brand / 46% generic
Brand Drug Cost
$697K
Antibiotic Claims
125

Patient Demographics

Average Patient Age
74.9 years
Avg HCC Risk Score
2.43
Gender Split
61% female / 39% male
Age Distribution
<65: 22, 65-74: 77, 75-84: 76, 85+: 32

Top Prescribed Drugs (Medicare Part D)

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

What ANAS NAHHAS, 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
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
201
Albuterol Sulfate Hfa
Albuterol Sulfate
127
Prednisone
83
Montelukast Sodium
82
Breo Ellipta
Fluticasone/Vilanterol
59
Azithromycin
48
Ventolin Hfa
Albuterol Sulfate
35
Spiriva Respimat
Tiotropium Bromide
27
Incruse Ellipta
Umeclidinium Bromide
26
Doxycycline Hyclate
24

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

Pulmonary Disease Physician Overview

How ANAS NAHHAS, M.D. fits within the Pulmonary Disease Physician landscape nationally.

9,271
Pulmonary Disease Physician Providers in US
53
States with Pulmonary Disease Physician
1,457
Avg Claims per Provider

ANAS NAHHAS, M.D.'s 1,083 claims are below the specialty average of 1,457.

Nearby Pulmonary Disease Physician Providers in Illinois

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

Compare Pulmonary Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ANAS NAHHAS, M.D.'s specialty?
ANAS NAHHAS, M.D. specializes in Pulmonary Disease Physician and practices in CHICAGO RIDGE, Illinois. Credentials: M.D..
How much does ANAS NAHHAS, M.D. prescribe under Medicare Part D?
In 2023, ANAS NAHHAS, M.D. wrote 1,083 Medicare Part D claims totaling $821K in drug costs for 207 beneficiaries.
Where is ANAS NAHHAS, M.D. located?
ANAS NAHHAS, M.D. is located at 10604 SOUTHWEST HIGHWAY, CHICAGO RIDGE, IL, 60415. Phone: (708) 371-8006.
What is ANAS NAHHAS, M.D.'s NPI number?
ANAS NAHHAS, M.D.'s National Provider Identifier (NPI) is 1780648873, issued on 04/14/2006.
Does ANAS NAHHAS, M.D. prescribe more brand-name or generic drugs?
ANAS NAHHAS, M.D.'s prescribing is 54% brand-name and 46% generic drugs by claim count, with $697K in brand drug costs.
How many Pulmonary Disease Physician providers are there in the US?
There are 9,271 Pulmonary Disease Physician providers across 53 states in the US. The average Pulmonary Disease Physician provider writes 1,457 Medicare Part D claims per year.
What drugs does ANAS NAHHAS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ANAS NAHHAS, M.D.'s most frequently prescribed drugs include Trelegy Ellipta, Albuterol Sulfate Hfa, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANAS NAHHAS, M.D. accept Medicare?
ANAS NAHHAS, M.D. appears in CMS Medicare data with 1,083 Part D claims and 207 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANAS NAHHAS, M.D.'s credentials?
ANAS NAHHAS, M.D.'s NPI is 1780648873 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

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