Joseph Christopher Portera, MD
Gynecology Physician · Chattanooga, TN
Joseph Christopher Portera, MD is a gynecology physician with a practice address in Chattanooga, Tennessee, and NPI 1821088410, issued on Oct 25, 2005. Check the license (Tennessee MD0000025662, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Joseph Christopher Portera
- Credential
- MD
- Primary taxonomy
- Gynecology Physician 207VG0400X
- License number
- MD0000025662 TN
Self-reported in NPPES; status is on the state search - Practice location
- 605 Glenwood Dr, Chattanooga, TN 37404
- Phone
- (423) 495-3304
- Enumerated
- Oct 25, 2005
- Record last updated
- Mar 4, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (423) 495-2589
- Medicare enrollment
- Enrolled (PECOS I20050618000123); accepts Medicare assignment
- Medical or professional school
- Albany Medical College Of Union University, 1991
- Entity
- Type 1 · individual
8 nearest gynecology physician records → All 82 in Tennessee → Look up another NPI →
Also registered at 605 Glenwood Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Atkinson, MDInternal Medicine Physician1477530038
- Marcie Beasley, N.P.Family Nurse Practitioner1679779771
- Brooke Daniel, MDHematology & Oncology Physician1326096231
- Davey Daniel, MDHematology & Oncology Physician1942258751
- Karen Davenport, APN ,ACNP-BCNurse Practitioner1811260649
- Arlene Donowitz, MDInternal Medicine Physician1548247109
Verify Joseph Christopher Portera in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license MD0000025662Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8.3 times the Medicare Part D claims of the average gynecology physician in 2024
2,489 Medicare Part D claims for 749 beneficiaries, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 27 claims were for opioids.
Most prescribed
- Estradiol803 claims
- Sulfamethoxazole-Trimethoprim175 claims
- Clotrimazole-Betamethasone129 claims
- Clobetasol Propionate121 claims
- Gemtesa121 claims
- Nitrofurantoin Mono-Macro110 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.
The MIPS final score for 2023 (Medicare payment program): 96.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $527.66
31 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 1,398 providers of this specialty with any payment received $2,469.88 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
- Chattanooga Hamilton County Hospital AuthorityChattanooga, TN
- Erlanger HealthChattanooga, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph Christopher Portera among 82 gynecology physician records in Tennessee
Joseph Christopher Portera, MD is one of 82 gynecology physician records with a practice address in Tennessee. 54% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 77% newer
- In a Medicare fileYes · 54% of these records are
- In the CMS Doctors and Clinicians fileYes · 33% of these records are
- Graduated1991 · median 1996 among the 27 with a school on file
- Record last updated2010 · 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 207VG0400X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecology Physician providers in Tennessee
There are 82 gynecology physician records in Tennessee.
All 82 in Tennessee → Every provider in Chattanooga → Gynecology Physician nationwide →
The 8 gynecology physician records with the nearest ZIP codes
- Todd Boren, M.D.Chattanooga, TN 374031730142340
- Chung Liu, MDChattanooga, TN 374211245325752
- Phyllis Miller, MDChattanooga, TN 374211528058906
- Alfredo Nieves Gonzalez, MDChattanooga, TN 374211730290768
- Clarissa Mashchak, M.D.Ooltewah, TN 373631245202183
- John Powell, M.D.Cleveland, TN 373111487627964
- Charles Barker, M.D.Altamont, TN 373011568425122
- Rony Adam, MDNashville, TN 372321992734792
Common questions
What is Joseph Christopher Portera, MD's NPI number?
Joseph Christopher Portera, MD's National Provider Identifier (NPI) is 1821088410, issued on Oct 25, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Christopher Portera, MD located?
The NPPES record lists a practice address at 605 Glenwood Dr, Chattanooga, TN, 37404. Phone: (423) 495-3304. Providers update this record themselves, so call before visiting.
How can I verify Joseph Christopher Portera, MD's license?
NPPES lists Tennessee license number MD0000025662, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joseph Christopher Portera, MD prescribe under Medicare Part D?
In 2024, Joseph Christopher Portera, MD had 2,489 Medicare Part D claims for 749 beneficiaries; the average among gynecology physician prescribers was 299. Part D covers Medicare prescriptions only.
What is Joseph Christopher Portera, MD's MIPS final score?
The 2023 MIPS final score is 96.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.