Physician Profile
Mason H. Weiss, M.D.
Unclaimed ProfileAbout Dr. Weiss
Mason H. Weiss, M.D. is a specialist based in Inglewood, CA. Medicare claims data shows Mason provided 45,617 services to 11,833 patients. The services billed most often include low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml, routine electrocardiogram (ecg) using at least 12 leads with interpretation and report, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (310) 672-3900
- Email not available
Practice Locations
501 E HARDY ST STE 200
Inglewood, CA 90301
Procedures Most Often Billed to Medicare
45,617 services · 11,833 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
1,295 | More than most peers in Specialist |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
2,542 | More than most peers in Specialist |
| Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | Billing code | Q9967 |
16,085 | More often than most peers in Specialist |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
2,119 | More than most peers in Specialist |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
1,849 | More than most peers in Specialist |
| Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | Office visit | 99457 |
1,671 | More than most peers in Specialist |
| Natriuretic peptide (heart and blood vessel protein) level | Lab test | 83880 |
1,143 | |
| Albumin (protein) level | Lab test | 82040 |
1,058 | |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
1,057 | More often than most peers in Specialist |
| Liver enzyme (sgpt), level | Lab test | 84460 |
1,057 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other specialists at this location 5
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other specialists in Inglewood 5
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1975 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Mason H. Weiss's specialty?
Mason H. Weiss is a specialist in Inglewood, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Mason H. Weiss?
Mason H. Weiss is listed at 501 E Hardy St Ste 200, Inglewood, CA 90301. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Mason H. Weiss?
The number on file is (310) 672-3900. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Mason H. Weiss?
Mason H. Weiss's National Provider Identifier is 1447256565. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Mason H. Weiss's education?
Mason H. Weiss attended Other, graduating in 1975. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Mason H. Weiss have?
Mason H. Weiss has 51 years experience. Calculated from a graduation year of 1975, reported in the CMS National Downloadable File.
CMS public data
What is Mason H. Weiss known for?
According to Medicare billing data, Mason H. Weiss performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Mason H. Weiss's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Mason H. Weiss. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.