William Baker, MD
NPI 1932589660 · Internal Medicine Physician · Charlotte, NC
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Baker, MD is a Internal Medicine Physician provider in Charlotte, NC (NPI 1932589660).
Provider details
- NPI number
- 1932589660
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2020-01060 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,303 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 447 | $122 |
| 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 | 210 | $16 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Each Additional Hour96366 | 143 | $19 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 112 | $14 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 104 | $59 |
| Injection of Additional New Drug Or Substance Into Vein |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 290 | 113 |
| Methotrexate Sodiumbrand: Methotrexate | 263 | 89 |
| Prednisone | 204 | 106 |
| Allopurinol | 160 | 45 |
| Adalimumabbrand: Humira(cf) Pen | 70 | 11 |
| Alendronate Sodium | 46 | 14 |
| Upadacitinibbrand: Rinvoq | 44 |
Practice location
Mailing address
Additional practice locations (3)
- 4525 Cameron Valley PkwySte 4100Charlotte, NC 28211-4369Phone: (704) 302-8337
- 4525 Cameron Valley PkwyCharlotte, NC 28211-4369Phone: (704) 355-5100
- 704 Gold Hill RdSte 203Fort Mill, SC 29715-8906Phone: (803) 835-0405
Registry dates
- Enumerated
- 2015-06-08
- Last updated
- 2024-07-15
Frequently asked questions
- What is William Baker's NPI number?
- William Baker's National Provider Identifier (NPI) is 1932589660, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Baker's specialty?
- William Baker is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Baker located?
- William Baker's practice location on file with NPPES is 4525 Cameron Valley Pkwy, Charlotte, NC 28211-4369.
- What is William Baker's phone number?
- The practice phone number listed in the NPPES registry for William Baker is (704) 468-8873.
- Does William Baker accept Medicare?
- William Baker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Baker's NPI active?
- Yes — William Baker's NPI (1932589660) is active in the NPPES registry as of the last update on 2024-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.