William Maxted, M.D.
NPI 1659388502 · Cardiovascular Disease Physician · Annapolis, MD
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Maxted, M.D. is a Cardiovascular Disease Physician provider in Annapolis, MD (NPI 1659388502).
Provider details
- NPI number
- 1659388502
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D56322 (MD)
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
19 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
6,059 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,373 | $144 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 1,219 | $16 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 805 | $8 |
| Evaluation of Cardiac Rhythm Monitor System, Remote Up to 30 Days93298 | 569 | $106 |
| 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'SG2211 | 557 | $18 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 40 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 344 | 140 |
| Atorvastatin Calcium | 331 | 140 |
| Apixabanbrand: Eliquis | 314 | 113 |
| Losartan Potassium | 231 | 92 |
| Amlodipine Besylate | 147 | 58 |
| Rosuvastatin Calcium | 139 | 56 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$352 across 7 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
- 2006-08-02
- Last updated
- 2008-04-01
Frequently asked questions
- What is William Maxted's NPI number?
- William Maxted's National Provider Identifier (NPI) is 1659388502, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Maxted's specialty?
- William Maxted is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is William Maxted located?
- William Maxted's practice location on file with NPPES is 2002 Medical Pkwy, Annapolis, MD 21401-3046.
- What is William Maxted's phone number?
- The practice phone number listed in the NPPES registry for William Maxted is (410) 573-6480.
- Does William Maxted accept Medicare?
- William Maxted is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Maxted's NPI active?
- Yes — William Maxted's NPI (1659388502) is active in the NPPES registry as of the last update on 2008-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.