William Aitken
NPI 1861883563 · Cardiovascular Disease Physician · Memphis, TN
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Aitken is a Cardiovascular Disease Physician provider in Memphis, TN (NPI 1861883563).
Provider details
- NPI number
- 1861883563
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- 125070082 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
169 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 52 | $73 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 19 | $117 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate and Valve Function93325 | 17 | $3 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 16 | $126 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 14 | $64 |
| Ultrasound of Heart With Probe in Esophagus, With Report93312 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$344 across 11 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
Additional practice locations (1)
- 1251 Wesley Dr Ste 100Memphis, TN 38116-6442Phone: (901) 435-8550Fax: (901) 395-2621
Registry dates
- Enumerated
- 2015-02-17
- Last updated
- 2024-10-14
- Certified
- 2024-10-14
Frequently asked questions
- What is William Aitken's NPI number?
- William Aitken's National Provider Identifier (NPI) is 1861883563, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Aitken's specialty?
- William Aitken is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is William Aitken located?
- William Aitken's practice location on file with NPPES is 1211 Union Ave Ste 965, Memphis, TN 38104-6638.
- What is William Aitken's phone number?
- The practice phone number listed in the NPPES registry for William Aitken is (901) 435-8550.
- Does William Aitken accept Medicare?
- William Aitken is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Aitken's NPI active?
- Yes — William Aitken's NPI (1861883563) is active in the NPPES registry as of the last update on 2024-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.