NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1710555461 MD
Verify on CMS → David Portney, MD
Ophthalmology Physician in Bloomfield 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 22,388 in 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
522
Medicare Part D claims · 319 beneficiaries · Ophthalmology Physician avg: 1K
What the federal data shows
David Portney, MD filed 522 Medicare Part D claims in 2024 as an Ophthalmology Physician in Bloomfield Hills, Michigan.
- 522
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥65th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about David Portney, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1710555461), first enumerated 06/17/2021.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 522 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Michigan statewide board action statistics are published annually — these figures describe aggregate state activity, not David Portney, MD's individual license status. Verify directly with the state medical board.
Source: MI-BOM annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Portney with other Ophthalmology Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Michigan
- Dr. Thomas Aaberg, MD Grand Rapids, MI
- Dr. Munzer Abdulhak, M.D. Portage, MI
- Dr. Gary Abrams, MD Detroit, MI
- Dr. James Adams, MD Ypsilanti, MI
- Dr. Howard Adelson, D.O. Northville, MI
- Dr. Todd Adelson, D.O Northville, MI
Other specialties in Bloomfield Hills: Physical Therapist (79) · Clinical Social Worker (72) · Clinical Psychologist (56) · Pharmacist (51)
CMS NPPES provider registry desk
NPI 1710555461 · Ophthalmology Physician
NPI-10 · ENUM-RECENT · TAX-MID · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1710555461
- ENUM-RECENT 2021
- TAX-MID 22K Ophthalmology Physician
- RX-LIGHT 522
- BOOK-LIGHT 773 in Michigan
- PHOTO-ENUM Modupe Adetunji · 2021
David Portney, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
522 ≥ 65th percentile 65% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
David Portney, 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 David Portney, MD?
Quality data not reportedPrimary specialty
Ophthalmology Physician
Medicare Part D claims
522 65% vs specialty avg
Specialty distribution in Michigan
How 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 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).
Practice Address
Provider Details
| NPI | 1710555461 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/17/2021 |
Hospital and facility affiliations
Facilities where David Portney, 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.
Grosinger Spigelman And Grey Eye Surgeons PC
Bloomfield Hills, 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).
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 David Portney, MD. To verify David Portney, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
522
Total Claims
$56K
Total Drug Cost
319
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 941.933
- Total Day Supply
- 25,905
- Generic Drug Cost
- $11K
Patient Demographics
- Average Patient Age
- 73.5 years
- Avg HCC Risk Score
- 1.35
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 30, 65-74: 123, 75-84: 135, 85+: 31
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What David Portney, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Latanoprost
Latanoprost
116 claims
- Prednisolone Acetate
Prednisolone Acetate
78 claims
- Brimonidine Tartrate 44
Brimonidine Tartrate
44 claims
- Dorzolamide-Timolol 41
Dorzolamide-Timolol
41 claims
- Erythromycin 39
Erythromycin
39 claims
- Timolol Maleate 30
Timolol Maleate
30 claims
- Dorzolamide Hcl 18
Dorzolamide Hcl
18 claims
- Ketorolac Trometha… 15
Ketorolac Tromethamine
15 claims
| Drug | Claims |
|---|---|
| Latanoprost | 116 |
| Prednisolone Acetate | 78 |
| Brimonidine Tartrate | 44 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 41 |
| Erythromycin Erythromycin Base | 39 |
| Timolol Maleate | 30 |
| Dorzolamide Hcl | 18 |
| Ketorolac Tromethamine | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How David Portney, MD fits within the Ophthalmology Physician landscape nationally.
22,388
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,490
Avg Claims per Provider
David Portney, MD's 522 claims are below the specialty average of 1,490.
Nationwide Ophthalmology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Portney, both outside Michigan so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2021)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Ophthalmology Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Portney.
One of 773 Ophthalmology Physician providers enrolled in Michigan, 11 are shown on this page.
Dr. Anju Aggarwal
MD
Taylor, MI
Dr. Ashim Aggarwal
M.D.
East Lansing, MI
Dr. Himanshu Aggarwal
MD
Taylor, MI
Dr. Michelle Akler
MD
Dearborn, MI
Dr. Shaza Al-Holou
M.D.
West Bloomfield, MI
Compare Ophthalmology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is David Portney, MD's specialty? ▼
David Portney, MD specializes in Ophthalmology Physician and practices in Bloomfield Hills, Michigan. Credentials: MD.
How much does David Portney, MD prescribe under Medicare Part D? ▼
In 2024, David Portney, MD wrote 522 Medicare Part D claims totaling $56K in drug costs for 319 beneficiaries.
Where is David Portney, MD located? ▼
David Portney, MD is located at 1750 S TELEGRAPH RD STE 205, Bloomfield Hills, MI, 48302. Phone: (248) 333-2900.
What is David Portney, MD's NPI number? ▼
David Portney, MD's National Provider Identifier (NPI) is 1710555461, issued on 06/17/2021.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,388 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,490 Medicare Part D claims per year.
What drugs does David Portney, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, David Portney, MD's most frequently prescribed drugs include Latanoprost, Prednisolone Acetate, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Portney, MD accept Medicare? ▼
David Portney, MD appears in CMS Medicare data with 522 Part D claims and 319 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Portney, MD's credentials? ▼
David Portney, MD's NPI is 1710555461 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.