Dr. Stephen Gregory Portera, MD
- Medicare services, 2024
- 3,690
- Medicare patients, 2024
- 939
- Part D claims, 2024
- 3,775
- MIPS score, 2024
- 82
- Hospital affiliations
- 5
- Practice address
- 1201 Bishop St, PO Box 310, Union City, TN 38261
- Practice phone
- Call (731) 885-2410
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Portera's professional email, personal email and mobile number
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Dr. Stephen Gregory Portera is a urologist in Union City, Tennessee
Dr. Portera practices at Baptist Memorial Hospital-Union City in Union City, Tennessee, part of Baptist Memorial Health Care.
Dr. Portera's NPI, 1205803608, was assigned on March 3, 2006. Dr. Portera graduated from Tulane University School of Medicine in 1992. Dr. Portera holds Tennessee license MD25742.
- NPI
- 1205803608NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456421056
- NPI enumeration date
- March 3, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (731) 885-2410
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen Gregory Portera practices at Baptist Memorial Hospital-Union City in Union City, Tennessee
Dr. Portera's primary practice is Baptist Memorial Hospital-Union City, at 1201 Bishop St, PO Box 310, Union City, TN 38261 in Obion County. The practice phone is (731) 885-2410.
- Baptist Memorial Hospital-Union City1201 Bishop St, PO Box 310, Union City, TN 38261 · Obion CountyPhone(731) 885-2410
Source: Dmand AI Affiliation Data
Dr. Stephen Gregory Portera is affiliated with 8 sites of care and 2 medical groups
Dr. Portera's primary practice is Baptist Memorial Hospital-Union City in Union City, Tennessee, part of Baptist Memorial Health Care. Dr. Portera is also affiliated with Methodist University Hospital. The medical group on file is Baptist Medical Group. Dmand AI also links Dr. Portera to 3 more hospitals, 1 group practice or clinic, 1 hospice, 1 therapy and rehab clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stephen Gregory Portera's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Portera practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Baptist Memorial Hospital-Union City | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Baptist Memorial Health Care and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Stephen Gregory Portera is one of 226 urologists in Tennessee
Urology is Dr. Portera's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Portera is licensed in Tennessee.
Specialties and state licenses
- Urology, TennesseePrimary
Urologists near Dr. Portera
Counts of urologists 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. Stephen Gregory Portera billed Medicare for 3,690 services in 2024
CMS data shows 3,690 Medicare services from Dr. Portera across 19 procedure codes in 2024, for 939 Medicare patients. Medicare paid $239,007 for them.
Dr. Portera's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,0342024: 1,77113%
- Lab and pathology
- 2023: 1,2782024: 98923%
- Surgery
- 2023: 9132024: 76217%
- Other services
- 2023: 452024: 168273%
Where Dr. Portera's Medicare services took place, 2024
- In an office3,51795%
- In a facility1735%
Dr. Portera compared with the Tennessee median for urologists, 2024
- Dr. Portera
- Tennessee median
- Medicare services
- 3,690vs 2,69137% above
- Medicare patients
- 939vs 55469% above
- Part D claims
- 3,638vs 8344.4 times
Medians across 229 urologists in Tennessee with Dmand AI profiles that report each measure.
Dr. Portera's most billed Medicare procedure codes, 2024
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. Portera and other urologists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen Gregory Portera treated 939 Medicare patients in 2024, average age 76
CMS counts 939 Medicare patients who saw Dr. Portera in 2024. The largest group is 75 to 84, with 421 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 2% are also on Medicaid. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Portera's median patient age at 68, with 100% women.
Dr. Portera's Medicare patients by age, 2024
Chronic conditions among Dr. Portera's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Anxiety26%
- Mood disorders24%
- Diabetes23%
- Depression22%
- Ischemic heart disease21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Portera's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen Gregory Portera wrote 3,775 Medicare Part D claims in 2024
In 2024, Dr. Portera wrote 3,775 Medicare Part D claims for 742 patients. 77% of them were for generic drugs. CMS names the drug for 3,638 of them, across 34 drugs with 11 or more claims each, at $590,558 in total drug cost. In 2023, CMS named 3,596 claims across 29 drugs.
Dr. Portera's Part D claims by kind of drug, 2024
- Generic2,904 claims77%
- Brand-name and other871 claims23%
Dr. Portera'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. Portera's Part D claims, 2024
- Opioids2%75 of 3,775 claims
- Antibiotics13%498 of 3,775 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: 3,5962024: 3,6381%
Drugs named by CMS: 34 in 2024, 29 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
Dr. Stephen Gregory Portera scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Portera for performance year 2024, reported as part of a group. Dr. Portera accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 28 procedures of removal of the uterus by Dr. Portera, more than 96% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Portera's MIPS scores, performance year 2024
- 82of 100Final score
- 64.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Portera ranks in Medicare procedure volume
- Removal of the uterus
- 96th percentile28 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Stephen Gregory Portera received $4,819 in industry payments from 2016 to 2025
CMS Open Payments shows 295 general payments to Dr. Portera from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 88% of the total. Astellas Pharma US Inc paid the most, $2,406.
General payments to Dr. Portera by program year, 2016 to 2025
General payments to Dr. Portera by kind, 2016 to 2025
- Food and beverage$4,23888%
- Education$58112%
Companies that paid Dr. Portera the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen Gregory Portera graduated from Tulane University School of Medicine
Dr. Portera graduated from Tulane University School of Medicine in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen Gregory Portera'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Stephen Gregory Portera
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. Stephen Gregory Portera's NPI number?
Dr. Stephen Gregory Portera's NPI number is 1205803608. It was assigned on March 3, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen Gregory Portera?
Dr. Stephen Gregory Portera is a urologist in Union City, Tennessee. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Stephen Gregory Portera practice?
Dr. Portera practices at 1201 Bishop St, PO Box 310, Union City, TN 38261. Dr. Portera's primary practice is Baptist Memorial Hospital-Union City in Union City, Tennessee, part of Baptist Memorial Health Care. Dmand AI also links Dr. Portera to 3 hospitals, 1 group practice or clinic, 1 hospice, 1 therapy and rehab clinic and 1 medical group.
What is Dr. Stephen Gregory Portera's office phone number?
The practice phone on file for Dr. Portera is (731) 885-2410.
What is Dr. Stephen Gregory Portera's medical license number?
Dr. Portera holds Tennessee license MD25742.
Which hospitals is Dr. Stephen Gregory Portera affiliated with?
Dr. Portera practices at Baptist Memorial Hospital-Union City in Union City, Tennessee. Dr. Portera is also affiliated with Methodist University Hospital. Dmand AI links Dr. Portera to 3 more hospitals.
What medical group is Dr. Stephen Gregory Portera part of?
Dr. Portera is linked to Baptist Medical Group. Dmand AI links Dr. Portera to 1 more medical group.
Does Dr. Stephen Gregory Portera accept Medicare?
Yes. CMS data shows Dr. Portera billed Medicare for 3,690 services in 2024, and Dr. Portera accepts Medicare assignment.
What is Dr. Stephen Gregory Portera's MIPS score?
Dr. Portera's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
How many Medicare patients does Dr. Stephen Gregory Portera see?
CMS counts 939 Medicare patients who saw Dr. Portera in 2024, with an average age of 76.
Show 5 more questionsShow fewer questions
What services does Dr. Stephen Gregory Portera bill to Medicare?
In 2024, Dr. Portera's most billed Medicare services were lab and pathology test (81003), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Stephen Gregory Portera go to medical school?
Dr. Portera graduated from Tulane University School of Medicine in 1992.
What drugs does Dr. Stephen Gregory Portera prescribe most?
In 2024 Medicare Part D data, Dr. Portera's most prescribed drugs by claims were Solifenacin Succinate, Myrbetriq and Amitriptyline HCl.
Has Dr. Stephen Gregory Portera received payments from drug or device companies?
CMS Open Payments shows $4,819 in general payments to Dr. Portera from 24 companies from 2016 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Dr. Stephen Gregory Portera been practicing?
Dr. Portera graduated from medical school in 1992, 34 years ago.
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