Karen Graham, MD
NPI 1124004213 · Ophthalmology Physician · Concord, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Graham, MD is a Ophthalmology Physician provider in Concord, CA (NPI 1124004213).
Provider details
- NPI number
- 1124004213
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- License
- A53220 (CA)
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
947 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 Problem Focused Exam of Visual System92012 | 359 | $101 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 191 | $138 |
| Photography of the Retina92250 | 177 | $41 |
| Exam of Visual Field With Extended Testing92083 | 140 | $74 |
| Exam of the Internal Drainage System of Eye92020 | 42 | $30 |
| Imaging of Optic Nerve92133 | 38 | $38 |
Typical Medicare-allowed amounts for these services range $30–$138 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 202 | 66 |
| Bimatoprostbrand: Lumigan | 120 | 34 |
| Brimonidine Tartrate | 66 | 21 |
| Timolol Maleate | 64 | 19 |
| Dorzolamide Hcl | 50 | 21 |
| Brimonidine Tartratebrand: Alphagan P | 44 | 13 |
| Tafluprost/Pfbrand: Tafluprost | 38 | — |
| Cyclosporine |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$306 across 8 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
- 2005-12-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Karen Graham's NPI number?
- Karen Graham's National Provider Identifier (NPI) is 1124004213, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Graham's specialty?
- Karen Graham is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Graham located?
- Karen Graham's practice location on file with NPPES is 2222 East St, Concord, CA 94520-2056.
- What is Karen Graham's phone number?
- The practice phone number listed in the NPPES registry for Karen Graham is (925) 687-8280.
- Does Karen Graham accept Medicare?
- Karen Graham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Graham's NPI active?
- Yes — Karen Graham's NPI (1124004213) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.