Physician Profile
Unclaimed ProfileAbout WALKER
Donna Walker, M.D. practises hematology/oncology in Lompoc, CA. Donna is a 1994 graduate of University of California, Geffen School of Medicine. Donna is also listed as specialising in hematology & oncology.
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
Areas of Expertise
Common questions
What does Dr. Walker specialise in?
Dr. Walker is a hematology/oncology in Lompoc, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “HEMATOLOGY/ONCOLOGY”.
NPI registry
Where is Dr. Walker located?
Dr. Walker is listed at 1201 E OCEAN AVE STE B, Lompoc, CA 93436. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Walker's phone number?
The number on file is (805) 735-1155. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Walker's NPI number?
Dr. Walker's National Provider Identifier is 1528086964. 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
Where did Dr. Walker go to medical school?
Dr. Walker attended University of California, Geffen School of Medicine, graduating in 1994. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Walker been practising?
Dr. Walker has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Walker do most often?
According to Medicare billing data, Dr. Walker 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
Has Dr. Walker confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Walker. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (805) 735-1155
- Email not available
Practice Locations
1201 E OCEAN AVE STE B
Lompoc, CA 93436
Procedures Most Often Billed to Medicare
1,091 services · 375 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
965 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
57 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
42 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
27 |
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.
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.
Trained at University of California, Geffen School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1994 at University of California, Geffen School of Medicine 8
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.