Ly Ma, M.D.
NPI 1699069385 · Anatomic Pathology & Clinical Pathology Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ly Ma, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Phoenix, AZ (NPI 1699069385).
Provider details
- NPI number
- 1699069385
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 47836 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,799 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 1,321 | $38 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 1,149 | $77 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 260 | $116 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 215 | $101 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 178 | $35 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 165 | $28 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$131 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)
- 424 S 56th St Ste 110Phoenix, AZ 85034-2177Phone: (602) 685-5211Fax: (602) 685-5325
Registry dates
- Enumerated
- 2011-05-31
- Last updated
- 2020-08-04
- Certified
- 2020-08-04
Frequently asked questions
- What is Ly Ma's NPI number?
- Ly Ma's National Provider Identifier (NPI) is 1699069385, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ly Ma's specialty?
- Ly Ma is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Ly Ma located?
- Ly Ma's practice location on file with NPPES is 424 S 56th St Ste 120, Phoenix, AZ 85034-2177.
- What is Ly Ma's phone number?
- The practice phone number listed in the NPPES registry for Ly Ma is (602) 685-5211.
- Does Ly Ma accept Medicare?
- Ly Ma is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ly Ma's NPI active?
- Yes — Ly Ma's NPI (1699069385) is active in the NPPES registry as of the last update on 2020-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.