Christopher Ma, M.D.
NPI 1962814921 · Sports Medicine (Family Medicine) Physician · Boston, MA
Enrolled with Medicare as Practitioner - Sports Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Ma, M.D. is a Sports Medicine (Family Medicine) Physician provider in Boston, MA (NPI 1962814921).
Provider details
- NPI number
- 1962814921
- Entity type
- Individual
- Primary specialty
- Sports Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 281532 (MA)
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 tenure25% of score
12 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
228 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) |
|---|---|---|
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 48 | $114 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 48 | $86 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 44 | $69 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 29 | $94 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 21 | $62 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$161 across 1 record (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
- 2014-05-27
- Last updated
- 2019-11-04
Frequently asked questions
- What is Christopher Ma's NPI number?
- Christopher Ma's National Provider Identifier (NPI) is 1962814921, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Ma's specialty?
- Christopher Ma is listed in the NPPES registry with a primary specialty of Sports Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Ma located?
- Christopher Ma's practice location on file with NPPES is 915 Commonwealth Ave Rear, Boston, MA 02215-1394.
- What is Christopher Ma's phone number?
- The practice phone number listed in the NPPES registry for Christopher Ma is (617) 638-5633.
- Does Christopher Ma accept Medicare?
- Christopher Ma is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Ma's NPI active?
- Yes — Christopher Ma's NPI (1962814921) is active in the NPPES registry as of the last update on 2019-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.