Charles Pao, MD
NPI 1063516573 · Internal Medicine Physician · Wellesley, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Pao, MD is a Internal Medicine Physician provider in Wellesley, MA (NPI 1063516573).
Provider details
- NPI number
- 1063516573
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MA150435 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
2,272 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 | 496 | $139 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 376 | $9 |
| 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 | 316 | $17 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 182 | $16 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 175 | $141 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 78 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 353 | 106 |
| Amlodipine Besylate | 177 | 46 |
| Lisinopril | 154 | 44 |
| Lorazepam | 150 | 44 |
| Metoprolol Succinate | 143 | 40 |
| Rosuvastatin Calcium | 128 | 43 |
| Apixaban |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-13
- Last updated
- 2019-06-26
Frequently asked questions
- What is Charles Pao's NPI number?
- Charles Pao's National Provider Identifier (NPI) is 1063516573, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Pao's specialty?
- Charles Pao is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Pao located?
- Charles Pao's practice location on file with NPPES is 40 Walnut Street, Wellesley, MA 02481-2102.
- What is Charles Pao's phone number?
- The practice phone number listed in the NPPES registry for Charles Pao is (781) 943-3000.
- Does Charles Pao accept Medicare?
- Charles Pao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Pao's NPI active?
- Yes — Charles Pao's NPI (1063516573) is active in the NPPES registry as of the last update on 2019-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.