NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1689294100 MD
Verify on CMS → Bahaa Elzein, MD
Internal Medicine Physician in Dearborn, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 174,792 in Internal 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
336
Medicare Part D claims · 151 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$106.81
6 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Bahaa Elzein, MD filed 336 Medicare Part D claims in 2024 as an Internal Medicine Physician in Dearborn, Michigan, prescribing 84% generic.
- 336
- Part D claims, 2024
- 84%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥56th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Bahaa Elzein, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1689294100), first enumerated 04/24/2020.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 336 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
3 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$106.81 in reported industry payments (6 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Elzein with other Internal Medicine Physician providers
Same primary specialty, same federal CMS NPPES roster.
All 223 Internal Medicine Physician providers in Dearborn, MI →
Also enrolled in Michigan
- Dr. Keith Aaronson, MD Ann Arbor, MI
- Dr. Tomas Abalo, M.D. Iron Mountain, MI
- Dr. Ali Abbas, M.D. Pontiac, MI
- Dr. Hawazin Abbas, MD Auburn Hills, MI
- Dr. Imran Abbasi, D.O. Warren, MI
- Dr. Ramzi Abbasi, MD Saginaw, MI
Other specialties in Dearborn: Behavior Technician (1,528) · Other Technician (245) · Technician/Technologist (230) · Pharmacist (227)
CMS NPPES provider registry desk
NPI 1689294100 · Internal Medicine Physician
NPI-10 · ENUM-RECENT · TAX-MEGA · RX-LIGHT · BOOK-MID · PHOTO-ENUM
- NPI-10 1689294100
- ENUM-RECENT 2020
- TAX-MEGA 175K Internal Medicine
- RX-LIGHT 336
- BOOK-MID 6,589 in Michigan
- PHOTO-ENUM Anna Winston, MD, MPH · 2020
Bahaa Elzein, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
336 ≥ 56th percentile 56% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Bahaa Elzein, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations - 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 Bahaa Elzein, MD?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
336 88% vs specialty avg
Specialty distribution in Michigan
How Internal Medicine Physician compares to other specialties among Michigan 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 Internal Medicine Physician. Verify directly:
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
Provider Details
| NPI | 1689294100 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/24/2020 |
Hospital and facility affiliations
Facilities where Bahaa Elzein, 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.
According to CMS billing records, Bahaa Elzein, MD is affiliated with 3 Medicare-billing facilities across 3 states.
Apogee Medical Group West Virginia PLLC
Logan, WV
Osf Multi-Specialty Group
Dixon, IL
Sound Inpatient Physicians-Michigan PLLC
Adrian, MI
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 Bahaa Elzein, MD. Source: openpaymentsdata.cms.gov.
Total received
$107
Largest payer
ABBVIE INC.
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.
Brand vs generic prescribing mix · Typical
Bahaa Elzein, MD - brand share 16.0%
Internal Medicine Physician average
16% brand-name claims vs 84% generic, on 336 2024 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 2024.
336
Total Claims
$35K
Total Drug Cost
151
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 356.833
- Total Day Supply
- 7,863
- Brand vs Generic
- 16% brand / 84% generic
- Brand Drug Cost
- $33K
- Generic Drug Cost
- $2K
- Antibiotic Claims
- 81
Patient Demographics
- Average Patient Age
- 70.8 years
- Avg HCC Risk Score
- 2.60
- Gender Split
- 53% female / 47% male
- Age Distribution
- <65: 32, 65-74: 57, 75-84: 50, 85+: 12
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Bahaa Elzein, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
31 claims
- Cefdinir
Cefdinir
18 claims
- Metoprolol Succinate
Metoprolol Succinate
15 claims
- Amlodipine Besylate
Amlodipine Besylate
14 claims
- Azithromycin
Azithromycin
14 claims
- Clopidogrel
Clopidogrel
13 claims
- Prednisone
Prednisone
13 claims
- Amoxicillin-Clavul… 12
Amoxicillin-Clavulanate Potass
12 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 31 |
| Cefdinir | 18 |
| Metoprolol Succinate | 15 |
| Amlodipine Besylate | 14 |
| Azithromycin | 14 |
| Clopidogrel Clopidogrel Bisulfate | 13 |
| Prednisone | 13 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 12 |
| Spironolactone | 12 |
* 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 Bahaa Elzein, MD fits within the Internal Medicine Physician landscape nationally.
174,792
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,785
Avg Claims per Provider
Bahaa Elzein, MD's 336 claims are below the specialty average of 2,785.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Elzein, both outside Michigan so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2020)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Internal Medicine Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Elzein.
One of 6,589 Internal Medicine Physician providers enrolled in Michigan, 11 are shown on this page.
Dr. Saadat Abbasi
MD
Kalamazoo, MI
Dr. Shahzaman Abbasi
MD
Lansing, MI
Dr. Youssef Abbiss
D.O.
Mount Clemens, MI
Dr. Joseph Abbo
MD
Ypsilanti, MI
Dr. Valerie Abbott
MD
Southfield, MI
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Bahaa Elzein, MD's specialty? ▼
Bahaa Elzein, MD specializes in Internal Medicine Physician and practices in Dearborn, Michigan. Credentials: MD.
How much does Bahaa Elzein, MD prescribe under Medicare Part D? ▼
In 2024, Bahaa Elzein, MD wrote 336 Medicare Part D claims totaling $35K in drug costs for 151 beneficiaries.
Where is Bahaa Elzein, MD located? ▼
Bahaa Elzein, MD is located at 23810 MICHIGAN AVE STE 102, Dearborn, MI, 48124. Phone: (313) 995-1796.
What is Bahaa Elzein, MD's NPI number? ▼
Bahaa Elzein, MD's National Provider Identifier (NPI) is 1689294100, issued on 04/24/2020.
Does Bahaa Elzein, MD prescribe more brand-name or generic drugs? ▼
Bahaa Elzein, MD's prescribing is 16% brand-name and 84% generic drugs by claim count, with $33K in brand drug costs.
How many Internal Medicine Physician providers are there in the US? ▼
There are 174,792 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,785 Medicare Part D claims per year.
What drugs does Bahaa Elzein, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Bahaa Elzein, MD's most frequently prescribed drugs include Atorvastatin Calcium, Cefdinir, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Bahaa Elzein, MD accept Medicare? ▼
Bahaa Elzein, MD appears in CMS Medicare data with 336 Part D claims and 151 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Bahaa Elzein, MD's credentials? ▼
Bahaa Elzein, MD's NPI is 1689294100 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
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 (2024). 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 August 2026 (NPPES) / 2024 (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
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 September 2026.