Mary Lim, D.O.
NPI 1609212208 · Ophthalmology Physician · San Ramon, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Lim, D.O. is a Ophthalmology Physician provider in San Ramon, CA (NPI 1609212208).
Provider details
- NPI number
- 1609212208
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 5101023729 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
13 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$52 across 2 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
- 2013-05-22
- Last updated
- 2024-12-17
- Certified
- 2024-12-17
Frequently asked questions
- What is Mary Lim's NPI number?
- Mary Lim's National Provider Identifier (NPI) is 1609212208, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Lim's specialty?
- Mary Lim is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Lim located?
- Mary Lim's practice location on file with NPPES is 2301 Camino Ramon Ste 104, San Ramon, CA 94583-2029.
- What is Mary Lim's phone number?
- The practice phone number listed in the NPPES registry for Mary Lim is (925) 277-1135.
- Does Mary Lim accept Medicare?
- Mary Lim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Lim's NPI active?
- Yes — Mary Lim's NPI (1609212208) is active in the NPPES registry as of the last update on 2024-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.