Patrick Leong, DO
NPI 1447237003 · Internal Medicine Physician · Somerville, MA
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patrick Leong, DO is a Internal Medicine Physician provider in Somerville, MA (NPI 1447237003).
Provider details
- NPI number
- 1447237003
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 7813 (NH)
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
20 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
611 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 152 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 145 | $134 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 69 | $142 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 48 | $95 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 43 | $21 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 40 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 93 | 45 |
| Amlodipine Besylate | 51 | 23 |
| Omeprazole | 45 | 23 |
| Empagliflozinbrand: Jardiance | 41 | — |
| Lisinopril | 36 | 19 |
| Metoprolol Succinate | 33 | 16 |
| Tamsulosin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-27
- Last updated
- 2023-08-02
- Certified
- 2023-08-02
Frequently asked questions
- What is Patrick Leong's NPI number?
- Patrick Leong's National Provider Identifier (NPI) is 1447237003, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patrick Leong's specialty?
- Patrick Leong is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Patrick Leong located?
- Patrick Leong's practice location on file with NPPES is 440 Foley St, Somerville, MA 02145-1213.
- What is Patrick Leong's phone number?
- The practice phone number listed in the NPPES registry for Patrick Leong is (857) 282-0777.
- Does Patrick Leong accept Medicare?
- Patrick Leong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patrick Leong's NPI active?
- Yes — Patrick Leong's NPI (1447237003) is active in the NPPES registry as of the last update on 2023-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.