Janet Ma, M.D.
NPI 1922454396 · Cardiovascular Disease Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Janet Ma, M.D. is a Cardiovascular Disease Physician provider in San Diego, CA (NPI 1922454396).
Provider details
- NPI number
- 1922454396
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A154092 (CA)
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
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
205 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) |
|---|---|---|
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 63 | $70 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 36 | $15 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 33 | $233 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 33 | $80 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 27 | $177 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 33 | 19 |
| Apixabanbrand: Eliquis | 31 | — |
| Carvedilol | 22 | — |
| Atorvastatin Calcium | 20 | — |
| Ezetimibe | 14 | — |
| Sacubitril/Valsartanbrand: Entresto | 13 | — |
| Rivaroxabanbrand: Xarelto |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 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
Additional practice locations (2)
- 9434 Medical Center DrLa Jolla, CA 92037-1337Phone: (800) 926-8273Fax: (888) 539-8781
- 2131 3rd AveSan Diego, CA 92101-2008Phone: (800) 926-8273Fax: (888) 539-8781
Registry dates
- Enumerated
- 2016-05-04
- Last updated
- 2024-08-09
- Certified
- 2024-08-09
Frequently asked questions
- What is Janet Ma's NPI number?
- Janet Ma's National Provider Identifier (NPI) is 1922454396, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janet Ma's specialty?
- Janet Ma is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Janet Ma located?
- Janet Ma's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103-9000.
- What is Janet Ma's phone number?
- The practice phone number listed in the NPPES registry for Janet Ma is (800) 926-8273.
- Does Janet Ma accept Medicare?
- Janet Ma is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Janet Ma's NPI active?
- Yes — Janet Ma's NPI (1922454396) is active in the NPPES registry as of the last update on 2024-08-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.