William Douglas Macdonald, M.D. practices pathology in Whittier, CA. William is a 1987 graduate of University of Texas Southwestern Medical School at Dallas. William is also listed as specializing in anatomic & clinical pathology. Medicare claims data shows William provided 2,270 services to 1,311 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
12401 WASHINGTON BLVD
Whittier, CA 90602
2,270 services · 1,311 patients · 16 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
1,113 |
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
240 |
| Special stained specimen slides to identify organisms including interpretation and report | Lab test | 88312 |
229 |
| Microscopic genetic analysis of tumor, manual | Lab test | 88360 |
137 |
| Preparation of tissue for examination by removing any calcium present | Lab test | 88311 |
118 |
| Pathology examination of tissue using a microscope, moderately low complexity | Lab test | 88304 |
98 |
| Pathology examination of tissue using a microscope, moderately high complexity | Lab test | 88307 |
81 |
| Special stained specimen slides to examine tissue, initial procedure | Lab test | 88342 |
73 |
| Cell examination of specimen, concentration technique | Lab test | 88108 |
41 |
| Special stained specimen slides to examine tissue including interpretation and report | Lab test | 88313 |
38 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Macdonald is a pathology in Whittier, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PATHOLOGY”.
NPI registry
Dr. Macdonald is listed at 12401 WASHINGTON BLVD, Whittier, CA 90602. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (562) 698-0758. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Macdonald's National Provider Identifier is 1679512149. 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
Dr. Macdonald attended University of Texas Southwestern Medical School at Dallas, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
Dr. Macdonald has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Macdonald the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Macdonald. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.