Marcus Appy, O.D.
NPI 1144453002 · Optometrist · Arcata, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcus Appy, O.D. is a Optometrist provider in Arcata, CA (NPI 1144453002).
Provider details
- NPI number
- 1144453002
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 13846 (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 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
2,815 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 | 920 | $38 |
| Established Patient Complete Exam of Visual System92014 | 874 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 393 | $93 |
| Imaging of Optic Nerve92133 | 158 | $35 |
| Exam of Visual Field With Extended Testing92083 | 144 | $67 |
| New Patient Complete Exam of Visual System92004 | 136 | $129 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 195 | 53 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 27 | 23 |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 24 | — |
| Brimonidine Tartrate | 24 | — |
| Timolol Maleate | 22 | — |
| Travoprost | 19 | — |
| Prednisolone Acetate | 14 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$69 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
- 2009-08-26
- Last updated
- 2009-08-26
Frequently asked questions
- What is Marcus Appy's NPI number?
- Marcus Appy's National Provider Identifier (NPI) is 1144453002, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus Appy's specialty?
- Marcus Appy is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Marcus Appy located?
- Marcus Appy's practice location on file with NPPES is 851 Bayside Rd, Arcata, CA 95521-6769.
- What is Marcus Appy's phone number?
- The practice phone number listed in the NPPES registry for Marcus Appy is (707) 822-7641.
- Does Marcus Appy accept Medicare?
- Marcus Appy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcus Appy's NPI active?
- Yes — Marcus Appy's NPI (1144453002) is active in the NPPES registry as of the last update on 2009-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.