Christina Grattan, O.D.
NPI 1194150953 · Optometrist · Torrance, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christina Grattan, O.D. is a Optometrist provider in Torrance, CA (NPI 1194150953).
Provider details
- NPI number
- 1194150953
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 14709 (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 tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
485 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| New Patient Complete Exam of Visual System92004 | 117 | $165 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 72 | $99 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 60 | $179 |
| Established Patient Complete Exam of Visual System92014 | 58 | $140 |
| Imaging of Retina92134 | 54 | $44 |
| Exam of Visual Field With Extended Testing92083 | 33 | $70 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 95 | 36 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 31 | 12 |
| Timolol Maleate | 25 | — |
| Prednisolone Acetate | 20 | 18 |
| Moxifloxacin Hclbrand: Moxifloxacin | 19 | 18 |
| Brimonidine Tartrate | 18 | — |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 18 | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-09-11
- Last updated
- 2023-08-10
- Certified
- 2023-08-10
Frequently asked questions
- What is Christina Grattan's NPI number?
- Christina Grattan's National Provider Identifier (NPI) is 1194150953, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christina Grattan's specialty?
- Christina Grattan is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Christina Grattan located?
- Christina Grattan's practice location on file with NPPES is 4825 Torrance Blvd Ste 100, Torrance, CA 90503-4167.
- What is Christina Grattan's phone number?
- The practice phone number listed in the NPPES registry for Christina Grattan is (310) 937-6585.
- Does Christina Grattan accept Medicare?
- Christina Grattan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christina Grattan's NPI active?
- Yes — Christina Grattan's NPI (1194150953) is active in the NPPES registry as of the last update on 2023-08-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.