May Graham, M.D.
NPI 1558597054 · Emergency Medicine Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
May Graham, M.D. is a Emergency Medicine Physician provider in Pasadena, CA (NPI 1558597054).
Provider details
- NPI number
- 1558597054
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- MDR-5673 (HI)
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
17 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
446 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 91 | $176 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 70 | $8 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 61 | $179 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 46 | $122 |
| Critical Care, First 30-74 Minutes99291 | 36 | $217 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 36 | 36 |
| Cephalexin | 35 | 35 |
| Azithromycin | 27 | 27 |
| Prednisone | 22 | 22 |
| Cefuroxime Axetilbrand: Cefuroxime | 20 | 20 |
| Ibuprofen | 19 | 18 |
| Tramadol Hcl | 16 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$367 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
- 2009-06-10
- Last updated
- 2025-02-26
- Certified
- 2025-02-26
Frequently asked questions
- What is May Graham's NPI number?
- May Graham's National Provider Identifier (NPI) is 1558597054, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is May Graham's specialty?
- May Graham is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is May Graham located?
- May Graham's practice location on file with NPPES is 100 W California Blvd, Pasadena, CA 91105-3010.
- What is May Graham's phone number?
- The practice phone number listed in the NPPES registry for May Graham is (626) 397-3445.
- Does May Graham accept Medicare?
- May Graham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is May Graham's NPI active?
- Yes — May Graham's NPI (1558597054) is active in the NPPES registry as of the last update on 2025-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.