2026 NPPES data Hospitalist Physician NPI 1588956254 M.D.
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ZIYAD ISKENDERIAN, M.D.

Hospitalist Physician in SOUTHFIELD, Michigan. 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
3K
Medicare Part D claims · 278 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$22.76
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ZIYAD ISKENDERIAN, M.D. is a Hospitalist Physician ([object Object]) practicing in SOUTHFIELD, Michigan with a Medicare Part D prescribing footprint of 3K claims across 278 beneficiaries — 16% brand-name prescribing . Industry payments of $22.76 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ZIYAD ISKENDERIAN, M.D. filed 3,227 Medicare Part D claims in 2023 across SOUTHFIELD, Michigan. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ZIYAD ISKENDERIAN, 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).

ZIYAD ISKENDERIAN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 05/12/2011

NPI 1588956254

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

3,227 263% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in Michigan

How Hospitalist Physician compares to other specialties among Michigan providers

Michigan providers

Hospitalist Physician share within Michigan

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

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).

ZIYAD ISKENDERIAN, M.D. is a Hospitalist Physician provider practicing in SOUTHFIELD, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1588956254. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ZIYAD ISKENDERIAN, M.D. appears in the CMS NPPES registry as a Hospitalist Physician provider holding M.D. credentials at 22250 PROVIDENCE DR, SOUTHFIELD, MI, 48075, with a listed phone of (248) 849-3281. NPI 1588956254 was issued on 05/12/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ISKENDERIAN 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 3,227 prescription claims written by this provider, covering 278 Medicare beneficiaries and totaling roughly $423K in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 2.4%. 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

22250 PROVIDENCE DR
SOUTHFIELD, MI 48075

Provider Details

NPI 1588956254
Specialty Hospitalist Physician
Credentials M.D.
Gender Male
NPI Issued 05/12/2011

Hospital and facility affiliations

Facilities where ZIYAD ISKENDERIAN, 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.

ASCENSION MEDICAL GROUP MICHIGAN
LATHRUP VILLAGE, 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 ZIYAD ISKENDERIAN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$23

Largest payer

Dexcom, 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.

License & disciplinary context — Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 — they are NOT specific to ZIYAD ISKENDERIAN, M.D.. To verify ZIYAD ISKENDERIAN, M.D.'s current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM 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 Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

ZIYAD ISKENDERIAN, M.D. — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 3,227 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.

3,227
Total Claims
$423K
Total Drug Cost
278
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,088
Total Day Supply
175,854
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$370K
Generic Drug Cost
$51K
Opioid Claims
77 (2.4% rate)
Antibiotic Claims
76

Patient Demographics

Average Patient Age
72.7 years
Avg HCC Risk Score
1.70
Gender Split
61% female / 39% male
Age Distribution
<65: 35, 65-74: 124, 75-84: 89, 85+: 30

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
247
Losartan Potassium
150
Amlodipine Besylate
123
Levothyroxine Sodium
84
Metformin Hcl
84
Metoprolol Succinate
82
Albuterol Sulfate Hfa
Albuterol Sulfate
81
Eliquis
Apixaban
78
Furosemide
68
Ozempic
Semaglutide
67

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

Hospitalist Physician Overview

How ZIYAD ISKENDERIAN, M.D. fits within the Hospitalist Physician landscape nationally.

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

ZIYAD ISKENDERIAN, M.D.'s 3,227 claims are above the specialty average of 888.

Nearby Hospitalist Physician Providers in Michigan

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

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

Frequently Asked Questions

What is ZIYAD ISKENDERIAN, M.D.'s specialty?
ZIYAD ISKENDERIAN, M.D. specializes in Hospitalist Physician and practices in SOUTHFIELD, Michigan. Credentials: M.D..
How much does ZIYAD ISKENDERIAN, M.D. prescribe under Medicare Part D?
In 2023, ZIYAD ISKENDERIAN, M.D. wrote 3,227 Medicare Part D claims totaling $423K in drug costs for 278 beneficiaries.
Where is ZIYAD ISKENDERIAN, M.D. located?
ZIYAD ISKENDERIAN, M.D. is located at 22250 PROVIDENCE DR, SOUTHFIELD, MI, 48075. Phone: (248) 849-3281.
What is ZIYAD ISKENDERIAN, M.D.'s NPI number?
ZIYAD ISKENDERIAN, M.D.'s National Provider Identifier (NPI) is 1588956254, issued on 05/12/2011.
Does ZIYAD ISKENDERIAN, M.D. prescribe more brand-name or generic drugs?
ZIYAD ISKENDERIAN, M.D.'s prescribing is 16% brand-name and 84% generic drugs by claim count, with $370K in brand drug costs.
Does ZIYAD ISKENDERIAN, M.D. prescribe opioids?
Yes, ZIYAD ISKENDERIAN, M.D. had 77 opioid claims in 2023 with an opioid prescribing rate of 2.4%.
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 ZIYAD ISKENDERIAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ZIYAD ISKENDERIAN, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ZIYAD ISKENDERIAN, M.D. accept Medicare?
ZIYAD ISKENDERIAN, M.D. appears in CMS Medicare data with 3,227 Part D claims and 278 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ZIYAD ISKENDERIAN, M.D.'s credentials?
ZIYAD ISKENDERIAN, M.D.'s NPI is 1588956254 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