Keith Zaitoun, MD
Nephrology Physician · Portsmouth, VA
Keith Zaitoun, MD is a nephrology physician with a practice address in Portsmouth, Virginia, and NPI 1679567820, issued on Sep 2, 2005. Check the license (Virginia 0101039811, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Keith Zaitoun
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 0101039811 VA
Self-reported in NPPES; status is on the state search - Practice location
- 3235 Academy Ave, Portsmouth, VA 23703
- Phone
- (757) 484-9400
- Enumerated
- Sep 2, 2005
- Record last updated
- May 11, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (757) 484-8809
- Medicaid ID
- 6078354 VA
- Medicare enrollment
- Enrolled (PECOS I20100917000404); accepts Medicare assignment
- Medical or professional school
- University Of Virginia School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 327 in Virginia → Look up another NPI →
Also registered at 3235 Academy Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Flordeliza Ablao-Chanthavichith, N.P.Nurse Practitioner1003968884
- Barry Atlas, MDOphthalmology Physician1588673313
- Antonietta Castanares, MDNephrology Physician1982698122
- Frederick Crum, MDFamily Medicine Physician1427081355
- David CyrEmergency Medicine Physician1598705618
- Wayne Devantier, MDOphthalmology Physician1538178363
Verify Keith Zaitoun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101039811Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average nephrology physician in 2024
777 Medicare Part D claims for 182 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Amlodipine Besylate115 claims
- Farxiga79 claims
- Hydralazine Hcl64 claims
- Losartan Potassium59 claims
- Furosemide43 claims
- Calcitriol31 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $429.92
22 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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 one group practice
- Portsmouth Nephrology PCPortsmouth, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Keith Zaitoun among 327 nephrology physician records in Virginia
Keith Zaitoun, MD is one of 327 nephrology physician records with a practice address in Virginia. 85% 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, 84% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1985 · median 2001 among the 242 with a school on file
- Record last updated2020 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Virginia
There are 327 nephrology physician records in Virginia.
All 327 in Virginia → Every provider in Portsmouth → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Antonietta Castanares, MDPortsmouth, VA 237031982698122
- Martin Harpen, MDPortsmouth, VA 237031134113384
- Krunal Patel, MDPortsmouth, VA 237031235393059
- Amaresh Vanga, M.D.Portsmouth, VA 237031265421275
- Mosta Haque, M.D.Portsmouth, VA 237041164465639
- Levan Gakhokidze, MDPortsmouth, VA 237071396353181
- Khadeeja AshaiPortsmouth, VA 237081831693548
- Matthew Baker, MDPortsmouth, VA 237081932561545
Common questions
What is Keith Zaitoun, MD's NPI number?
Keith Zaitoun, MD's National Provider Identifier (NPI) is 1679567820, issued on Sep 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Keith Zaitoun, MD located?
The NPPES record lists a practice address at 3235 Academy Ave, Portsmouth, VA, 23703. Phone: (757) 484-9400. Providers update this record themselves, so call before visiting.
How can I verify Keith Zaitoun, MD's license?
NPPES lists Virginia license number 0101039811, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Keith Zaitoun, MD prescribe under Medicare Part D?
In 2024, Keith Zaitoun, MD had 777 Medicare Part D claims for 182 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Keith Zaitoun, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.