2026 NPPES data Retina Specialist (Ophthalmology) Physician NPI 1447485461 MD
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JOSHUA GRANT, MD

Retina Specialist (Ophthalmology) Physician in FARMINGTON HILLS, 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
1K
Medicare Part D claims · 335 beneficiaries · Retina Specialist (Ophthalmology) Physician avg: 558
Generic prescribing
73%
generic claims · 27% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$5.7K
32 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JOSHUA GRANT, MD is a Retina Specialist (Ophthalmology) Physician ([object Object]) practicing in FARMINGTON HILLS, Michigan with a Medicare Part D prescribing footprint of 1K claims across 335 beneficiaries — 27% brand-name prescribing . Industry payments of $5.7K across 32 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: JOSHUA GRANT, MD filed 1,279 Medicare Part D claims in 2023 across FARMINGTON HILLS, Michigan. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JOSHUA GRANT, MD 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).

JOSHUA GRANT, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 05/19/2009

NPI 1447485461

Primary specialty

Retina Specialist (Ophthalmology) Physician

Niche

913 US NPIs in this specialty

Medicare Part D claims

1,279 129% vs specialty avg

2023 prescription claims

Specialty avg: 558

Specialty distribution in Michigan

How Retina Specialist (Ophthalmology) Physician compares to other specialties among Michigan providers

Michigan providers

Retina Specialist (Ophthalmology) Physician share within Michigan

1. Retina Specialist (Ophthalmology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Retina Specialist (Ophthalmology) Physician share within Michigan

Specialty board-certification context

Estimated specialty board-certified rate — Retina Specialist (Ophthalmology) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Retina Specialist (Ophthalmology) Physician ABMS/AOA estimate

Est. board-certified rate (Retina Specialist (Ophthalmology) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Retina Specialist (Ophthalmology) 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).

JOSHUA GRANT, MD is a Retina Specialist (Ophthalmology) Physician provider practicing in FARMINGTON HILLS, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1447485461. 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.

JOSHUA GRANT, MD appears in the CMS NPPES registry as a Retina Specialist (Ophthalmology) Physician provider holding MD credentials at 32255 NORTHWESTERN HWY STE 45, FARMINGTON HILLS, MI, 48334, with a listed phone of (248) 550-0393. NPI 1447485461 was issued on 05/19/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRANT 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 1,279 prescription claims written by this provider, covering 335 Medicare beneficiaries and totaling roughly $187K in drug spend, split 27% brand-name and 73% 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.

Retina Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 913 enrolled providers across 48 states and an average of 558 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

32255 NORTHWESTERN HWY STE 45
FARMINGTON HILLS, MI 48334

Provider Details

NPI 1447485461
Specialty Retina Specialist (Ophthalmology) Physician
Credentials MD
Gender Male
NPI Issued 05/19/2009

Hospital and facility affiliations

Facilities where JOSHUA GRANT, 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.

MICHIGAN HEALTHCARE PROFESSIONALS PC
FARMINGTON HILLS, MI
REGENTS OF THE UNIVERSITY OF MICHIGAN
GRAND BLANC, 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 JOSHUA GRANT, MD. Source: openpaymentsdata.cms.gov.

Total received

$5.7K

Largest payer

Regeneron Healthcare Solutions, 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 JOSHUA GRANT, MD. To verify JOSHUA GRANT, MD'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 · Above average

JOSHUA GRANT, MD — brand share 27.0%
Specialty average (est.)

27% brand-name claims vs 73% generic, on 1,279 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.

1,279
Total Claims
$187K
Total Drug Cost
335
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,521
Total Day Supply
72,484
Brand vs Generic
27% brand / 73% generic
Brand Drug Cost
$149K
Generic Drug Cost
$38K
Antibiotic Claims
21

Patient Demographics

Average Patient Age
76.3 years
Avg HCC Risk Score
1.58
Gender Split
64% female / 36% male
Age Distribution
<65: 19, 65-74: 126, 75-84: 129, 85+: 61

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Latanoprost
377
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
165
Prednisolone Acetate
104
Brimonidine Tartrate
77
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
74
Timolol Maleate
73
Ketorolac Tromethamine
66
Dorzolamide Hcl
57
Restasis
Cyclosporine
54
Cyclosporine
46

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

Retina Specialist (Ophthalmology) Physician Overview

How JOSHUA GRANT, MD fits within the Retina Specialist (Ophthalmology) Physician landscape nationally.

913
Retina Specialist (Ophthalmology) Physician Providers in US
48
States with Retina Specialist (Ophthalmology) Physician
558
Avg Claims per Provider

JOSHUA GRANT, MD's 1,279 claims are above the specialty average of 558.

Nearby Retina Specialist (Ophthalmology) Physician Providers in Michigan

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

Compare Retina Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOSHUA GRANT, MD's specialty?
JOSHUA GRANT, MD specializes in Retina Specialist (Ophthalmology) Physician and practices in FARMINGTON HILLS, Michigan. Credentials: MD.
How much does JOSHUA GRANT, MD prescribe under Medicare Part D?
In 2023, JOSHUA GRANT, MD wrote 1,279 Medicare Part D claims totaling $187K in drug costs for 335 beneficiaries.
Where is JOSHUA GRANT, MD located?
JOSHUA GRANT, MD is located at 32255 NORTHWESTERN HWY STE 45, FARMINGTON HILLS, MI, 48334. Phone: (248) 550-0393.
What is JOSHUA GRANT, MD's NPI number?
JOSHUA GRANT, MD's National Provider Identifier (NPI) is 1447485461, issued on 05/19/2009.
Does JOSHUA GRANT, MD prescribe more brand-name or generic drugs?
JOSHUA GRANT, MD's prescribing is 27% brand-name and 73% generic drugs by claim count, with $149K in brand drug costs.
How many Retina Specialist (Ophthalmology) Physician providers are there in the US?
There are 913 Retina Specialist (Ophthalmology) Physician providers across 48 states in the US. The average Retina Specialist (Ophthalmology) Physician provider writes 558 Medicare Part D claims per year.
What drugs does JOSHUA GRANT, MD prescribe most often?
Based on 2023 Medicare Part D data, JOSHUA GRANT, MD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Prednisolone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOSHUA GRANT, MD accept Medicare?
JOSHUA GRANT, MD appears in CMS Medicare data with 1,279 Part D claims and 335 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOSHUA GRANT, MD's credentials?
JOSHUA GRANT, MD's NPI is 1447485461 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