Diana Guillaume, MD
NPI 1154999878 · Family Medicine Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Guillaume, MD is a Family Medicine Physician provider in Philadelphia, PA (NPI 1154999878).
Provider details
- NPI number
- 1154999878
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 125078974 (IL)
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 tenure25% of score
5 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
19 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) |
|---|---|---|
| Assessment of Emotional Or Behavioral Problems96127 | 19 | $5 |
Typical Medicare-allowed amounts for these services range $5–$5 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 58 | 25 |
| Atorvastatin Calcium | 45 | 22 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 34 | 11 |
| Lisinopril | 26 | 11 |
| Empagliflozinbrand: Jardiance | 25 | — |
| Metoprolol Tartrate | 24 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$14 across 1 record (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
- 2021-06-17
- Last updated
- 2024-07-17
- Certified
- 2024-07-17
Frequently asked questions
- What is Diana Guillaume's NPI number?
- Diana Guillaume's National Provider Identifier (NPI) is 1154999878, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Guillaume's specialty?
- Diana Guillaume is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Guillaume located?
- Diana Guillaume's practice location on file with NPPES is 7602 Central Ave Ste 101, Philadelphia, PA 19111-2443.
- What is Diana Guillaume's phone number?
- The practice phone number listed in the NPPES registry for Diana Guillaume is (215) 969-2900.
- Does Diana Guillaume accept Medicare?
- Diana Guillaume is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Guillaume's NPI active?
- Yes — Diana Guillaume's NPI (1154999878) is active in the NPPES registry as of the last update on 2024-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.