Dr. Gerhardt O. Rivera, MD
- Medicare services, 2019
- 31
- Part D claims, 2024
- 820
- Industry payments
- $295
- Affiliated sites
- 3
- Medical group
- 1
- Practice address
- 55 Calle E, San Juan, PR 00926
- Practice phone
- Call (787) 737-2311
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
NeoMed Center Trujillo Alto - San Juan
Urgent Care Center · San Juan, Puerto Rico
Find Dr. Rivera's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gerhardt O. Rivera is an OB-GYN in San Juan, Puerto Rico
Dr. Rivera practices at NeoMed Center Trujillo Alto - San Juan in San Juan, Puerto Rico.
Dr. Rivera's NPI, 1205802519, was assigned on February 27, 2006. Dr. Rivera graduated from University Central Del Caribe Escuela De Medicina in 1988. Dr. Rivera holds Puerto Rico license 10932.
- NPI
- 1205802519NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618913518
- NPI enumeration date
- February 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (787) 737-2311
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gerhardt O. Rivera practices at NeoMed Center Trujillo Alto - San Juan in San Juan, Puerto Rico
Dr. Rivera's primary practice is NeoMed Center Trujillo Alto - San Juan, at 55 Calle E, San Juan, PR 00926. The practice phone is (787) 737-2311.
- NeoMed Center Trujillo Alto - San Juan55 Calle E, San Juan, PR 00926Phone(787) 737-2311
Source: Dmand AI Affiliation Data
Dr. Gerhardt O. Rivera is affiliated with 3 sites of care and 1 medical group
Dr. Rivera's primary practice is NeoMed Center Trujillo Alto - San Juan in San Juan, Puerto Rico. The medical group on file is NeoMed Center. Dmand AI also links Dr. Rivera to 1 more group practice or clinic and 1 urgent care center, each named with a free account. Dr. Rivera's employer is on file too: an urgent care center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gerhardt O. Rivera's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rivera practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| NeoMed Center Trujillo Alto - San Juan | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gerhardt O. Rivera is one of 263 OB-GYNs in Puerto Rico
Obstetrics and gynecology is Dr. Rivera's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Rivera is licensed in Puerto Rico.
Specialties and state licenses
- Obstetrics and gynecology, Puerto RicoPrimary
OB-GYNs near Dr. Rivera
Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gerhardt O. Rivera billed Medicare for 31 services in 2019
CMS data shows 31 Medicare services from Dr. Rivera across 1 procedure code in 2019, all of them office visits. Medicare paid $1,494 for them. Every service was in an office.
Dr. Rivera's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 352019: 3111%
Dr. Rivera compared with the Puerto Rico median for OB-GYNs, 2019
- Dr. Rivera
- Puerto Rico median
- Medicare services
- 31vs 2811% above
- Part D claims
- 745vs 779.7 times
Medians across 265 OB-GYNs in Puerto Rico with Dmand AI profiles that report each measure.
Dr. Rivera's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rivera and other OB-GYNs in Puerto Rico.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gerhardt O. Rivera's patients have a median age of 47
Across all payers, Dmand AI patient panel data puts Dr. Rivera's median patient age at 47, with 100% women.
Dr. Rivera's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Gerhardt O. Rivera wrote 820 Medicare Part D claims in 2024
In 2024, Dr. Rivera wrote 820 Medicare Part D claims for 317 patients. 72% of them were for generic drugs. CMS names the drug for 745 of them, across 10 drugs with 11 or more claims each, at $26,731 in total drug cost. In 2023, CMS named 836 claims across 8 drugs.
Dr. Rivera's Part D claims by kind of drug, 2024
- Generic591 claims72%
- Brand-name229 claims28%
Dr. Rivera's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Rivera's Part D claims, 2024
- Antibiotics5%44 of 820 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 8362024: 74511%
Drugs named by CMS: 10 in 2024, 8 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Gerhardt O. Rivera takes part in Medicare
Dr. Rivera accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gerhardt O. Rivera received $295 in industry payments from 2018 to 2020
CMS Open Payments shows 4 general payments to Dr. Rivera from 2 drug and device companies from 2018 to 2020. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $163.
General payments to Dr. Rivera by program year, 2018 to 2020
Companies that paid Dr. Rivera the most, 2018 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gerhardt O. Rivera graduated from University Central Del Caribe Escuela De Medicina
Dr. Rivera graduated from University Central Del Caribe Escuela De Medicina in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gerhardt O. Rivera's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gerhardt O. Rivera
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gerhardt O. Rivera's NPI number?
Dr. Gerhardt O. Rivera's NPI number is 1205802519. It was assigned on February 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gerhardt O. Rivera?
Dr. Gerhardt O. Rivera is an OB-GYN in San Juan, Puerto Rico. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Gerhardt O. Rivera practice?
Dr. Rivera practices at 55 Calle E, San Juan, PR 00926. Dr. Rivera's primary practice is NeoMed Center Trujillo Alto - San Juan in San Juan, Puerto Rico. Dmand AI also links Dr. Rivera to 1 group practice or clinic and 1 urgent care center.
What is Dr. Gerhardt O. Rivera's office phone number?
The practice phone on file for Dr. Rivera is (787) 737-2311.
What is Dr. Gerhardt O. Rivera's medical license number?
Dr. Rivera holds Puerto Rico license 10932.
What medical group is Dr. Gerhardt O. Rivera part of?
Dr. Rivera is linked to NeoMed Center.
Does Dr. Gerhardt O. Rivera accept Medicare?
Yes. CMS data shows Dr. Rivera billed Medicare for 31 services in 2019, and Dr. Rivera accepts Medicare assignment.
What services does Dr. Gerhardt O. Rivera bill to Medicare?
In 2019, Dr. Rivera's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Gerhardt O. Rivera go to medical school?
Dr. Rivera graduated from University Central Del Caribe Escuela De Medicina in 1988.
What drugs does Dr. Gerhardt O. Rivera prescribe most?
In 2024 Medicare Part D data, Dr. Rivera's most prescribed drugs by claims were Clindamycin Phosphate, Alendronate Sodium and Fluconazole.
Has Dr. Gerhardt O. Rivera received payments from drug or device companies?
CMS Open Payments shows $295 in general payments to Dr. Rivera from 2 companies from 2018 to 2020. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Gerhardt O. Rivera been practicing?
Dr. Rivera graduated from medical school in 1988, 38 years ago.
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