Guillermo Portillo, M.D.
NPI 1821252271 · Psychiatry Physician · Philadelphia, PA
Guillermo Portillo, M.D. is a Psychiatry Physician provider in Philadelphia, PA (NPI 1821252271).
Provider details
- NPI number
- 1821252271
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MT191276 (PA)
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
17 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Buspirone Hcl | 63 |
| Clonazepam | 38 |
| Alprazolam | 29 |
| Lamotrigine | 29 |
| Atomoxetine Hcl | 28 |
| Trazodone Hcl | 27 |
| Pregabalin | 26 |
| Quetiapine Fumarate | 22 |
| Gabapentin | 20 |
| Diazepam |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$32 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
- 2008-07-15
- Last updated
- 2010-02-08
Frequently asked questions
- What is Guillermo Portillo's NPI number?
- Guillermo Portillo's National Provider Identifier (NPI) is 1821252271, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Guillermo Portillo's specialty?
- Guillermo Portillo is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Guillermo Portillo located?
- Guillermo Portillo's practice location on file with NPPES is 100 E Lehigh Ave, Philadelphia, PA 19125-1012.
- What is Guillermo Portillo's phone number?
- The practice phone number listed in the NPPES registry for Guillermo Portillo is (215) 707-1200.
- Is Guillermo Portillo's NPI active?
- Yes — Guillermo Portillo's NPI (1821252271) is active in the NPPES registry as of the last update on 2010-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.