Helen Ma, M.D.
NPI 1841600186 · Hematology & Oncology Physician · Long Beach, CA
Helen Ma, M.D. is a Hematology & Oncology Physician provider in Long Beach, CA (NPI 1841600186).
Provider details
- NPI number
- 1841600186
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 280560 (NY)
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 tenure33% of score
12 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$118 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 (1)
- 177 Fort Washington AveMhb 6gn 435New York, NY 10032Phone: (212) 305-7115
Registry dates
- Enumerated
- 2014-05-07
- Last updated
- 2020-07-08
- Certified
- 2020-07-08
Frequently asked questions
- What is Helen Ma's NPI number?
- Helen Ma's National Provider Identifier (NPI) is 1841600186, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helen Ma's specialty?
- Helen Ma is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Helen Ma located?
- Helen Ma's practice location on file with NPPES is 5901 East 7th St, Long Beach, CA 90822.
- What is Helen Ma's phone number?
- The practice phone number listed in the NPPES registry for Helen Ma is (562) 826-8000.
- Is Helen Ma's NPI active?
- Yes — Helen Ma's NPI (1841600186) is active in the NPPES registry as of the last update on 2020-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.