2026 NPPES data Internal Medicine Physician NPI 1770785115 MD
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MAZEN DAHBAR, MD

Internal Medicine Physician in LORAIN, Ohio. 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
2K
Medicare Part D claims · 443 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MAZEN DAHBAR, MD filed 2,229 Medicare Part D claims in 2023 as a Internal Medicine Physician in LORAIN, Ohio, prescribing 91% generic.

2K
Part D claims, 2023
91%
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.

MAZEN DAHBAR, MD's Medicare Part D volume vs every U.S. prescriber

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

2,229 Top 15% higher than 85% 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%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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)

MAZEN DAHBAR, 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 MAZEN DAHBAR, MD?

Quality data not reported

NPI registry status

Active

Issued 06/05/2007

NPI 1770785115

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

2,229 18% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Ohio

How Internal Medicine Physician compares to other specialties among Ohio providers

Ohio providers

Internal Medicine Physician share within Ohio

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

Specialty board-certification context

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

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

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

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

MAZEN DAHBAR, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 5172 LEAVITT RD, LORAIN, OH, 44053, with a listed phone of (440) 282-7420. NPI 1770785115 was issued on 06/05/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DAHBAR 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 2,229 prescription claims written by this provider, covering 443 Medicare beneficiaries and totaling roughly $193K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 2.6%. 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

5172 LEAVITT RD
LORAIN, OH 44053

Provider Details

NPI 1770785115
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 06/05/2007

Hospital and facility affiliations

Facilities where MAZEN DAHBAR, 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.

CLEVELAND CLINIC
★★★★☆ 4/5
NORTH RIDGEVILLE, OH
Acute Care Hospitals
CMS CCN: 360180

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 — Ohio OMB 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 ~48K Ohio medical licensees in 2023 — they are NOT specific to MAZEN DAHBAR, MD. To verify MAZEN DAHBAR, MD's current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB 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 Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

MAZEN DAHBAR, MD — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 2,229 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.

2,229
Total Claims
$193K
Total Drug Cost
443
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,369
Total Day Supply
123,548
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$152K
Generic Drug Cost
$39K
Opioid Claims
59 (2.6% rate)
Antibiotic Claims
175

Patient Demographics

Average Patient Age
71.9 years
Avg HCC Risk Score
1.41
Gender Split
53% female / 47% male
Age Distribution
<65: 69, 65-74: 205, 75-84: 124, 85+: 45

Top Prescribed Drugs (Medicare Part D)

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

What MAZEN DAHBAR, 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
Atorvastatin Calcium
91
Azithromycin
91
Losartan Potassium
80
Amlodipine Besylate
74
Lisinopril
65
Omeprazole
64
Levothyroxine Sodium
63
Metformin Hcl
62
Albuterol Sulfate Hfa
Albuterol Sulfate
60
Gabapentin
58

* 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 MAZEN DAHBAR, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

MAZEN DAHBAR, MD's 2,229 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Ohio

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

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MAZEN DAHBAR, MD's specialty?
MAZEN DAHBAR, MD specializes in Internal Medicine Physician and practices in LORAIN, Ohio. Credentials: MD.
How much does MAZEN DAHBAR, MD prescribe under Medicare Part D?
In 2023, MAZEN DAHBAR, MD wrote 2,229 Medicare Part D claims totaling $193K in drug costs for 443 beneficiaries.
Where is MAZEN DAHBAR, MD located?
MAZEN DAHBAR, MD is located at 5172 LEAVITT RD, LORAIN, OH, 44053. Phone: (440) 282-7420.
What is MAZEN DAHBAR, MD's NPI number?
MAZEN DAHBAR, MD's National Provider Identifier (NPI) is 1770785115, issued on 06/05/2007.
Does MAZEN DAHBAR, MD prescribe more brand-name or generic drugs?
MAZEN DAHBAR, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $152K in brand drug costs.
Does MAZEN DAHBAR, MD prescribe opioids?
Yes, MAZEN DAHBAR, MD had 59 opioid claims in 2023 with an opioid prescribing rate of 2.6%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does MAZEN DAHBAR, MD prescribe most often?
Based on 2023 Medicare Part D data, MAZEN DAHBAR, MD's most frequently prescribed drugs include Atorvastatin Calcium, Azithromycin, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MAZEN DAHBAR, MD accept Medicare?
MAZEN DAHBAR, MD appears in CMS Medicare data with 2,229 Part D claims and 443 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MAZEN DAHBAR, MD's credentials?
MAZEN DAHBAR, MD's NPI is 1770785115 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