2026 NPPES data Obstetrics & Gynecology Physician NPI 1649616046 M.D
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MIRIANA HIJAZ, M.D

Obstetrics & Gynecology Physician in DETROIT, 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
484
Medicare Part D claims · 111 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$195.37
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MIRIANA HIJAZ, M.D filed 484 Medicare Part D claims in 2023 as a Obstetrics & Gynecology Physician in DETROIT, Michigan, prescribing 93% generic.

484
Part D claims, 2023
93%
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.

MIRIANA HIJAZ, M.D's Medicare Part D volume vs every U.S. prescriber

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

484 Top 38% higher than 62% 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)

MIRIANA HIJAZ, M.D practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 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 MIRIANA HIJAZ, M.D?

Quality data not reported

NPI registry status

Active

Issued 05/13/2013

NPI 1649616046

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

484 170% vs specialty avg

2023 prescription claims

Specialty avg: 179

Specialty distribution in Michigan

How Obstetrics & Gynecology Physician compares to other specialties among Michigan providers

Michigan providers

Obstetrics & Gynecology Physician share within Michigan

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

Specialty board-certification context

Estimated specialty board-certified rate — Obstetrics & Gynecology Physician (ABMS / AOA reference)

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

Est. board-certified rate (Obstetrics & Gynecology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Obstetrics & Gynecology 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).

MIRIANA HIJAZ, M.D appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding M.D credentials at 2799 W GRAND BLVD, DETROIT, MI, 48202, with a listed phone of (313) 916-2600. NPI 1649616046 was issued on 05/13/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HIJAZ 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 484 prescription claims written by this provider, covering 111 Medicare beneficiaries and totaling roughly $423K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 5.2%. 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.

Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 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

2799 W GRAND BLVD
DETROIT, MI 48202

Provider Details

NPI 1649616046
Specialty Obstetrics & Gynecology Physician
Credentials M.D
Gender Female
NPI Issued 05/13/2013

Hospital and facility affiliations

Facilities where MIRIANA HIJAZ, 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.

HENRY FORD HEALTH SYSTEM
DETROIT, MI
HENRY FORD MACOMB HOSPITAL CORPORATION
CLINTON TOWNSHIP, 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 MIRIANA HIJAZ, M.D. Source: openpaymentsdata.cms.gov.

Total received

$195

Largest payer

PFIZER 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 MIRIANA HIJAZ, M.D. To verify MIRIANA HIJAZ, 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 · Generic-heavy

MIRIANA HIJAZ, M.D — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 484 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.

484
Total Claims
$423K
Total Drug Cost
111
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
539
Total Day Supply
8,320
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$405K
Generic Drug Cost
$19K
Opioid Claims
25 (5.2% rate)
Antibiotic Claims
36

Patient Demographics

Average Patient Age
70.8 years
Avg HCC Risk Score
2.29
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

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

What MIRIANA HIJAZ, 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
Olanzapine
84
Dexamethasone
82
Ondansetron Odt
Ondansetron
40
Gabapentin
27
Anastrozole
14
Duloxetine Hcl
13
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
13
Lidocaine-Prilocaine
Lidocaine/Prilocaine
13
Methocarbamol
11

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

Obstetrics & Gynecology Physician Overview

How MIRIANA HIJAZ, M.D fits within the Obstetrics & Gynecology Physician landscape nationally.

44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

MIRIANA HIJAZ, M.D's 484 claims are above the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in Michigan

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

Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MIRIANA HIJAZ, M.D's specialty?
MIRIANA HIJAZ, M.D specializes in Obstetrics & Gynecology Physician and practices in DETROIT, Michigan. Credentials: M.D.
How much does MIRIANA HIJAZ, M.D prescribe under Medicare Part D?
In 2023, MIRIANA HIJAZ, M.D wrote 484 Medicare Part D claims totaling $423K in drug costs for 111 beneficiaries.
Where is MIRIANA HIJAZ, M.D located?
MIRIANA HIJAZ, M.D is located at 2799 W GRAND BLVD, DETROIT, MI, 48202. Phone: (313) 916-2600.
What is MIRIANA HIJAZ, M.D's NPI number?
MIRIANA HIJAZ, M.D's National Provider Identifier (NPI) is 1649616046, issued on 05/13/2013.
Does MIRIANA HIJAZ, M.D prescribe more brand-name or generic drugs?
MIRIANA HIJAZ, M.D's prescribing is 7% brand-name and 93% generic drugs by claim count, with $405K in brand drug costs.
Does MIRIANA HIJAZ, M.D prescribe opioids?
Yes, MIRIANA HIJAZ, M.D had 25 opioid claims in 2023 with an opioid prescribing rate of 5.2%.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does MIRIANA HIJAZ, M.D prescribe most often?
Based on 2023 Medicare Part D data, MIRIANA HIJAZ, M.D's most frequently prescribed drugs include Olanzapine, Dexamethasone, Ondansetron Odt. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MIRIANA HIJAZ, M.D accept Medicare?
MIRIANA HIJAZ, M.D appears in CMS Medicare data with 484 Part D claims and 111 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MIRIANA HIJAZ, M.D's credentials?
MIRIANA HIJAZ, M.D's NPI is 1649616046 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