Guillermo Roberto Otero-Perez, MD
Psychiatry Physician · Philadelphia, PA
Guillermo Roberto Otero-Perez, MD is a psychiatry physician with a practice address in Philadelphia, Pennsylvania, and NPI 1962441725, issued on Jun 6, 2006. Check the license (Pennsylvania MD428748, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Guillermo Roberto Otero-Perez
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- MD428748 PA
MT180138 PA
Self-reported in NPPES; status is on the state search - Practice location
- 101 E Olney Ave, Philadelphia, PA 19120
- Phone
- (215) 456-7000
- Enumerated
- Jun 6, 2006
- Record last updated
- Jan 15, 2025
- Fax
- (215) 254-2599
- Medicare enrollment
- Enrolled (PECOS I20061013000472); accepts Medicare assignment
- Medical or professional school
- University Of Puerto Rico School Of Medicine, 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,662 in Pennsylvania → Look up another NPI →
Also registered at 101 E Olney Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Linda Bailey, P.A.Surgical Physician Assistant1053369041
- George Bell, MDPsychiatry Physician1295775997
- Beth Berman, PSY.D.Clinical Psychologist1265471031
- Kimberly Best, MDPsychiatry Physician1073556007
- John Boruch, CRNACertified Registered Nurse Anesthetist1174562854
- Sandra Brice, P.A.Surgical Physician Assistant1548217961
Verify Guillermo Roberto Otero-Perez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD428748Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average psychiatry physician in 2024
727 Medicare Part D claims for 69 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Clonazepam68 claims
- Sertraline Hcl32 claims
- Fluoxetine Hcl28 claims
- Trazodone Hcl27 claims
- Dextroamphetamine-Amphetamine25 claims
- Lorazepam25 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $19.63
1 payment: food and beverage; the largest payer was Tris Pharma Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Cmc OF PA, PCAbington, PA
- Einstein Practice Plan IncElkins Park, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Guillermo Roberto Otero-Perez among 2,662 psychiatry physician records in Pennsylvania
Guillermo Roberto Otero-Perez, MD is one of 2,662 psychiatry physician records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 61% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2002 · median 2003 among the 1,186 with a school on file
- Record last updated2025 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
727 psychiatry physician records list a practice address in Philadelphia
They are 727 of the 42,849 NPPES records with a practice address in Philadelphia, and 2,662 psychiatry physician records in Pennsylvania.
All 2,662 in Pennsylvania → Every provider in Philadelphia → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- George Bell, MDPhiladelphia, PA 191201295775997
- Kimberly Best, MDPhiladelphia, PA 191201073556007
- Douglas Cosgrove, MDPhiladelphia, PA 191201164468427
- Fayez Elgabalawi, MDPhiladelphia, PA 191201578505889
- Kevin Hails, MDPhiladelphia, PA 191201710927116
- Richard Jaffe, MDPhiladelphia, PA 191201962448167
- Chong Kim, MDPhiladelphia, PA 191201114972825
- Joselyn LluberesPhiladelphia, PA 191201205877065
Common questions
What is Guillermo Roberto Otero-Perez, MD's NPI number?
Guillermo Roberto Otero-Perez, MD's National Provider Identifier (NPI) is 1962441725, issued on Jun 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Guillermo Roberto Otero-Perez, MD located?
The NPPES record lists a practice address at 101 E Olney Ave, Philadelphia, PA, 19120. Phone: (215) 456-7000. Providers update this record themselves, so call before visiting.
How can I verify Guillermo Roberto Otero-Perez, MD's license?
NPPES lists Pennsylvania license number MD428748, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Guillermo Roberto Otero-Perez, MD prescribe under Medicare Part D?
In 2024, Guillermo Roberto Otero-Perez, MD had 727 Medicare Part D claims for 69 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.