NPI registry status
Active
2026 NPPES data Retina Specialist (Ophthalmology) Physician NPI 1447485461 MD
Verify on CMS → Joshua Grant, MD
Retina Specialist (Ophthalmology) Physician in Farmington Hills, 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 913 in Retina Specialist (Ophthalmology) 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
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)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Joshua Grant, MD filed 1,279 Medicare Part D claims in 2023 as a Retina Specialist (Ophthalmology) Physician in Farmington Hills, Michigan, prescribing 73% generic.
- 1K
- Part D claims, 2023
- 73%
- 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.
Joshua Grant, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,279 Top 22% higher than 78% of 1,370,886 prescribers
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)
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).
What does the federal data show about Joshua Grant, MD?
Quality data not reportedPrimary specialty
Retina Specialist (Ophthalmology) Physician
Medicare Part D claims
1,279 129% vs specialty avg
Specialty distribution in Michigan
How Retina Specialist (Ophthalmology) 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 Retina Specialist (Ophthalmology) 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).
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.
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.
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
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%
Retina Specialist (Ophthalmology) Physician average
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.
What Joshua Grant, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
377 claims
- Dorzolamide-Timolol
Dorzolamide-Timolol
165 claims
- Prednisolone Acetate 104
Prednisolone Acetate
104 claims
- Brimonidine Tartrate 77
Brimonidine Tartrate
77 claims
- Neomycin-Polymyxin… 74
Neomycin-Polymyxin-Dexameth
74 claims
- Timolol Maleate 73
Timolol Maleate
73 claims
- Ketorolac Trometha… 66
Ketorolac Tromethamine
66 claims
- Dorzolamide Hcl 57
Dorzolamide Hcl
57 claims
| 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.
More Retina Specialist (Ophthalmology) Physician in MI →
All providers in Michigan →
Compare specialties →
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.
Dr. Shareef Ahmed
MD
Dearborn, MI
Dr. Tedi Begaj
MD
Royal Oak, MI
Dr. Greg Bever
M.D.
Grand Rapids, MI
Dr. Steven Boskovich
MD
Flint, MI
Dr. Lisa Faia
M.D.
Royal Oak, MI
Compare Retina Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Michigan medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Retina Specialist (Ophthalmology) Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
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Virtual care options and coverage in 2026
Explore Michigan
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
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 (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
Compiled from official public sources by the PlainDoctor editorial team.