What is Walter Gardiner's NPI number?

Walter Gardiner's National Provider Identifier (NPI) is 1225035280, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Walter Gardiner's specialty?

Walter Gardiner is listed in the NPPES registry with a primary specialty of Ph.D. Medical Genetics (Other Service Providers).

Where is Walter Gardiner located?

Walter Gardiner's practice location on file with NPPES is 5134 Sundial Park, Christiansted, VI 00820-4673.

What is Walter Gardiner's phone number?

The practice phone number listed in the NPPES registry for Walter Gardiner is (340) 773-3227.

Does Walter Gardiner accept Medicare?

Walter Gardiner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Walter Gardiner's NPI active?

Yes — Walter Gardiner's NPI (1225035280) is active in the NPPES registry as of the last update on 2008-01-29.

IndividualActiveAccepts Medicare

Walter Gardiner, M.D.

NPI 1225035280 · Ph.D. Medical Genetics · Christiansted, VI

Walter Gardiner, M.D. is a Ph.D. Medical Genetics provider in Christiansted, VI (NPI 1225035280).

Provider details

NPI number: 1225035280
Entity type: Individual
Primary specialty: Ph.D. Medical GeneticsOther Service Providers
Credential: M.D.
Sex: Male
Sole proprietor: No
License: 1008 (VI)

Practice location

5134 Sundial Park

Gallows Bay

Christiansted, VI 00820-4673

Phone: (340) 773-3227

Fax: (340) 773-8997

More VI providers

Mailing address

Po Box 1728

Christiansted, VI 00821-1728

Specialties & taxonomies

Ph.D. Medical GeneticsPrimary170100000XLicense 1008 (VI)
Other Service Providers

Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(87/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
21 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
576 Medicare services, 2024 (ranked within specialty)

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 methodology.

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)
Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960	386	$343
Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961	133	$267
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	57	$127

Typical Medicare-allowed amounts for these services range $127–$343 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

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
Nifedipinebrand: Nifedipine Er	162	27
Losartan Potassium	135	23
Metformin Hcl	73	—
Atorvastatin Calcium	60	11
Pantoprazole Sodium	48	11
Levothyroxine Sodium	38	—
Glipizidebrand: Glipizide Er

Enumerated: 2005-07-06
Last updated: 2008-01-29

Frequently asked questions

What is Walter Gardiner's NPI number?: Walter Gardiner's National Provider Identifier (NPI) is 1225035280, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Walter Gardiner's specialty?: Walter Gardiner is listed in the NPPES registry with a primary specialty of Ph.D. Medical Genetics (Other Service Providers).
Where is Walter Gardiner located?: Walter Gardiner's practice location on file with NPPES is 5134 Sundial Park, Christiansted, VI 00820-4673.
What is Walter Gardiner's phone number?: The practice phone number listed in the NPPES registry for Walter Gardiner is (340) 773-3227.
Does Walter Gardiner accept Medicare?: Walter Gardiner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Walter Gardiner's NPI active?: Yes — Walter Gardiner's NPI (1225035280) is active in the NPPES registry as of the last update on 2008-01-29.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

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)
Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960	386	$343
Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961	133	$267
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	57	$127