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Edit this profileAt a glance
- 20055 Lake Chabot Rd Ste 130, Castro Valley, CA 94546
About Kathryn Simms
Listed in the NPI registry as a nurse practitioner, Kathryn D. Simms, NP practices in Castro Valley, CA. Medicare claims data shows Kathryn provided 98,631 services to 1,071 patients. The services billed most often include injection, darbepoetin alfa, 1 microgram (non-esrd use), injection, ferric carboxymaltose, 1 mg, and injection, pembrolizumab, 1 mg. NPI 1447770359 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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
- (415) 885-3882
- Email not available
Practice Locations
20055 LAKE CHABOT RD STE 130
Castro Valley, CA 94546
Procedures Most Often Billed to Medicare
98,631 services · 1,071 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of additional new drug or substance into vein | Treatment | 96375 |
370 | More than most peers in Nurse Practitioner |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
310 | More than most peers in Nurse Practitioner |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
197 | More than most peers in Nurse Practitioner |
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | Treatment | 96365 |
103 | More often than most peers in Nurse Practitioner |
| Administration of additional new drug or substance into vein, 1 hour or less | Treatment | 96417 |
75 | More often than most peers in Nurse Practitioner |
| Infusion into a vein for therapy, prevention, or diagnosis, each additional hour | Treatment | 96366 |
71 | As often as other peers in Nurse Practitioner |
| Injection, darbepoetin alfa, 1 microgram (non-esrd use) | Drug given | J0881 |
34,000 | More than most peers in Nurse Practitioner |
| Injection, ferric carboxymaltose, 1 mg | Drug given | J1439 |
31,500 | Too few peers to compare |
| Injection, pembrolizumab, 1 mg | Drug given | J9271 |
12,200 | Too few peers to compare |
| Injection, fosaprepitant, 1 mg | Drug given | J1453 |
5,700 | Too few peers to compare |
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.
Related specialists at this location 6
Clinically related specialties at the same address — the people this provider most likely works alongside.
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 nurse practitioners in Castro Valley 8
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 2017 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of additional new drug or substance into vein 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Kathryn D. Simms?
Kathryn D. Simms is a nurse practitioner in Castro Valley, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Kathryn D. Simms's address?
Kathryn D. Simms is listed at 20055 Lake Chabot Rd Ste 130, Castro Valley, CA 94546. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Kathryn D. Simms?
The number on file is (415) 885-3882. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Kathryn D. Simms?
Kathryn D. Simms's National Provider Identifier is 1447770359. 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 Kathryn D. Simms train?
Kathryn D. Simms attended Other, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Kathryn D. Simms have?
Kathryn D. Simms has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What procedures does Kathryn D. Simms perform?
According to Medicare billing data, Kathryn D. Simms provides treatments such as injection of additional new drug or substance into vein and injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Kathryn D. Simms's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Kathryn D. Simms. If this is you, claiming it is free.
Guide.md
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