EthnicityPlatelet CountPregnancy Trimester, Third
Dr. Gregorio R. Riera, MD
NPI1821282278
- Medicare services, 2019
- 13
- Part D claims, 2016
- 13
- Publications
- 2
- Industry payments
- $111
- Affiliated sites
- 1
- Practice address
- 127 Saundersville Road Suite A, Hendersonville, TN 37075
- Practice phone
- Call (615) 265-8038
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Indian Lake Surgery Center
Surgery Center - Medicare-Certified · Hendersonville, Tennessee
Find Dr. Riera'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. Gregorio R. Riera is an obstetrics physician in Hendersonville, Tennessee
Dr. Riera practices at Indian Lake Surgery Center in Hendersonville, Tennessee.
Dr. Riera's NPI, 1821282278, was assigned on August 29, 2007. Dr. Riera graduated from University of Carabobo Faculty of Health Sciences in 2000. Dr. Riera's Texas license number on file is M7573.
NPI and contact details
- NPI
- 1821282278NPI Registry (opens in a new tab)
- NPI enumeration date
- August 29, 2007
- NPI status
- Active
- Practice phone
- (615) 265-8038
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Gregorio R. Riera practices at Indian Lake Surgery Center in Hendersonville, Tennessee
Dr. Riera's primary practice is Indian Lake Surgery Center, at 127 Saundersville Road Suite A, Hendersonville, TN 37075. The practice phone is (615) 265-8038.
- Indian Lake Surgery Center127 Saundersville Road Suite A, Hendersonville, TN 37075Phone(615) 265-8038
Source: Dmand AI Affiliation Data
Dr. Gregorio R. Riera is affiliated with 1 site of care
Dr. Riera's primary practice is Indian Lake Surgery Center in Hendersonville, Tennessee.
Indian Lake Surgery CenterPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gregorio R. Riera's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Riera practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Indian Lake Surgery Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregorio R. Riera is one of 27 obstetrics physicians in Tennessee
Obstetrics is Dr. Riera's primary specialty in the NPI Registry, under taxonomy code 207VX0000X. Dr. Riera is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dr. Riera has a license on file in Texas.
Specialties and state licenses
- Obstetrics, TexasPrimary
Obstetrics physicians near Dr. Riera
Counts of obstetrics physicians 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. Gregorio R. Riera billed Medicare for 13 services in 2019
CMS data shows 13 Medicare services from Dr. Riera across 1 procedure code in 2019. Medicare paid $511 for them. Every service was in an office.
Medicare services, 201913
Paid by Medicare$511
Procedure codes1
Dr. Riera's Medicare services by type, 2016 to 2019
- 2016
- 2019
- Other services
- 2016: 112019: 1318%
Dr. Riera compared with the Tennessee median for obstetrics physicians, 2019
- Dr. Riera
- Tennessee median
- Medicare services
- 13vs 2854% below
- Part D claims
- 13vs 4269% below
Medians across 24 obstetrics physicians in Tennessee with Dmand AI profiles that report each measure.
Dr. Riera'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. Riera and other obstetrics physicians in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregorio R. Riera's patients have a median age of 43
Across all payers, Dmand AI patient panel data puts Dr. Riera's median patient age at 43, with 100% women.
Dr. Riera's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Gregorio R. Riera wrote 13 Medicare Part D claims in 2016
In 2016, Dr. Riera wrote 13 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $79 in total drug cost.
Part D claims, 201613
Drugs named by CMS1
Total drug cost$79
Dr. Riera's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Gregorio R. Riera has 2 publications on record
Dmand AI links 2 papers to Dr. Riera in 2019. Dr. Riera's most frequent co-authors are Megan Galindo, MD, Jose M. Rivers, MD and Oscar R. Ruiz, MD.
Papers2
Dr. Riera's most frequent co-authors
Recent publications by Dr. Riera
Am Surg
Abdomen, AcuteClinical CompetenceDiagnosis, Differential
See who Dr. Riera researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Riera works with, so you can find a warm path to the right obstetrics physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregorio R. Riera received $111 in industry payments from 2016 to 2017
CMS Open Payments shows 4 general payments to Dr. Riera from 4 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Duchesnay USA Incorporated paid the most, $75.
General payments to Dr. Riera by program year, 2016 to 2017
Companies that paid Dr. Riera the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregorio R. Riera has 1 award and honors on record
Dmand AI lists 1 award for Dr. Riera.
Awards and honors for Dr. Riera
- Undated
- ACOG Fellow
Source: Dmand AI Professional Profile Data
Dr. Gregorio R. Riera graduated from University of Carabobo Faculty of Health Sciences
Dr. Riera graduated from University of Carabobo Faculty of Health Sciences in 2000. Dr. Riera is a member of American College of Obstetricians and Gynecologists.
- Medical school
- Board certified in obstetrics & gynecology
Source: Dmand AI Professional Profile Data
Dr. Gregorio R. Riera accepts plans from 2 insurance carriers
Dr. Riera is in network with 2 carriers, including Elevance and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
Plan types Dr. Riera accepts, by number of carriers
- HMO2
- POS2
- PPO2
- EPO1
- Medicare1
Source: Dmand AI Insurance Network Data
Sources for Dr. Gregorio R. Riera'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Gregorio R. Riera
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. Gregorio R. Riera's NPI number?
Dr. Gregorio R. Riera's NPI number is 1821282278. It was assigned on August 29, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregorio R. Riera?
Dr. Gregorio R. Riera is an obstetrics physician in Hendersonville, Tennessee. The primary specialty in the NPI Registry is Obstetrics Physician (taxonomy code 207VX0000X).
Where does Dr. Gregorio R. Riera practice?
Dr. Riera practices at 127 Saundersville Road Suite A, Hendersonville, TN 37075. Dr. Riera's primary practice is Indian Lake Surgery Center in Hendersonville, Tennessee.
What is Dr. Gregorio R. Riera's office phone number?
The practice phone on file for Dr. Riera is (615) 265-8038.
What is Dr. Gregorio R. Riera's medical license number?
Dr. Riera's Texas license number on file is M7573.
Does Dr. Gregorio R. Riera accept Medicare?
Yes. CMS data shows Dr. Riera billed Medicare for 13 services in 2019.
Is Dr. Gregorio R. Riera board certified?
Yes. Dr. Riera is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.
What services does Dr. Gregorio R. Riera bill to Medicare?
In 2019, Dr. Riera's most billed Medicare services were medicare service (G0101).
Where did Dr. Gregorio R. Riera go to medical school?
Dr. Riera graduated from University of Carabobo Faculty of Health Sciences in 2000.
What drugs does Dr. Gregorio R. Riera prescribe most?
In 2016 Medicare Part D data, Dr. Riera's most prescribed drugs by claims were Paroxetine HCl.
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Has Dr. Gregorio R. Riera received payments from drug or device companies?
CMS Open Payments shows $111 in general payments to Dr. Riera from 4 companies from 2016 to 2017. The largest total came from Duchesnay USA Incorporated.
How long has Dr. Gregorio R. Riera been practicing?
Dr. Riera graduated from medical school in 2000, 26 years ago.
Does Dr. Gregorio R. Riera do research?
Dmand AI links 2 publications to Dr. Riera.
Who does Dr. Gregorio R. Riera publish with?
Dr. Riera's most frequent co-authors are Megan Galindo, MD (1 shared paper), Jose M. Rivers, MD (1 shared paper) and Oscar R. Ruiz, MD (1 shared paper).
What insurance does Dr. Gregorio R. Riera accept?
Dr. Riera is in network with 2 carriers, including Elevance and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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