Keith Zaitoun, MD
NPI 1679567820 · Nephrology Physician · Portsmouth, VA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Keith Zaitoun, MD is a Nephrology Physician provider in Portsmouth, VA (NPI 1679567820).
Provider details
- NPI number
- 1679567820
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101039811 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
6,382 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, Each Additional 20 Minutes99458 | 1,578 | $38 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 1,213 | $46 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 783 | $47 |
| Remote Monitoring of Physiologic Parameters, Initial Supply of Devices With Daily Recordings Or Programmed Alerts Transmission, Each 30 Days99454 | 718 | $46 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 656 | $60 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 115 | 41 |
| Dapagliflozin Propanediolbrand: Farxiga | 79 | 20 |
| Hydralazine Hcl | 64 | 30 |
| Losartan Potassium | 59 | 22 |
| Furosemide | 43 | 18 |
| Calcitriol | 31 | — |
| Sevelamer Carbonate | 31 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$430 across 22 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-02
- Last updated
- 2020-05-11
- Certified
- 2020-05-11
Frequently asked questions
- What is Keith Zaitoun's NPI number?
- Keith Zaitoun's National Provider Identifier (NPI) is 1679567820, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keith Zaitoun's specialty?
- Keith Zaitoun is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Keith Zaitoun located?
- Keith Zaitoun's practice location on file with NPPES is 3235 Academy Ave, Portsmouth, VA 23703-3200.
- What is Keith Zaitoun's phone number?
- The practice phone number listed in the NPPES registry for Keith Zaitoun is (757) 484-9400.
- Does Keith Zaitoun accept Medicare?
- Keith Zaitoun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Keith Zaitoun's NPI active?
- Yes — Keith Zaitoun's NPI (1679567820) is active in the NPPES registry as of the last update on 2020-05-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.