Mark Speaker, M.D.
NPI 1598793796 · Ophthalmology Physician · New York, NY
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Speaker, M.D. is a Ophthalmology Physician provider in New York, NY (NPI 1598793796).
Provider details
- NPI number
- 1598793796
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 154659 (NY)
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
20 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
323 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) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 62 | $140 |
| Imaging of Retina92134 | 42 | $43 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $102 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 34 | $42 |
| Ct Scan of Cornea92025 | 32 | $40 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 27 | $603 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$105 across 3 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
- 2006-06-28
- Last updated
- 2026-01-22
- Certified
- 2026-01-22
Frequently asked questions
- What is Mark Speaker's NPI number?
- Mark Speaker's National Provider Identifier (NPI) is 1598793796, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Speaker's specialty?
- Mark Speaker is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Speaker located?
- Mark Speaker's practice location on file with NPPES is 8 W 38th St Rm 1102, New York, NY 10018-0145.
- What is Mark Speaker's phone number?
- The practice phone number listed in the NPPES registry for Mark Speaker is (212) 931-5110.
- Does Mark Speaker accept Medicare?
- Mark Speaker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Speaker's NPI active?
- Yes — Mark Speaker's NPI (1598793796) is active in the NPPES registry as of the last update on 2026-01-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.