Mark Pennesi, MD PHD
NPI 1225256274 · Ophthalmology Physician · Portland, OR
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Pennesi, MD PHD is a Ophthalmology Physician provider in Portland, OR (NPI 1225256274).
Provider details
- NPI number
- 1225256274
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Male
- Sole proprietor
- No
- License
- MD28382 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
60 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Photography of the Retina92250 | 24 | $21 |
| Exam of Visual Field With Extended Testing92083 | 23 | $28 |
| Established Patient Complete Exam of Visual System92014 | 13 | $79 |
Typical Medicare-allowed amounts for these services range $21–$79 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,052 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-23
- Last updated
- 2010-03-16
Frequently asked questions
- What is Mark Pennesi's NPI number?
- Mark Pennesi's National Provider Identifier (NPI) is 1225256274, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Pennesi's specialty?
- Mark Pennesi is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Pennesi located?
- Mark Pennesi's practice location on file with NPPES is 3375 Sw Terwilliger Blvd, Portland, OR 97239-4146.
- What is Mark Pennesi's phone number?
- The practice phone number listed in the NPPES registry for Mark Pennesi is (503) 494-8386.
- Does Mark Pennesi accept Medicare?
- Mark Pennesi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Pennesi's NPI active?
- Yes — Mark Pennesi's NPI (1225256274) is active in the NPPES registry as of the last update on 2010-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.