Are you Holly Hammack, LCSW? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 9961 Sierra Ave, Fontana, CA 92335
About Holly Hammack
Listed in the NPI registry as a clinical social worker, Holly Hammack, LCSW practices in Fontana, CA. NPI 1295939338 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
- (909) 427-3910
- Email not available
Practice Locations
9961 SIERRA AVE
Fontana, CA 92335
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 clinical social workers at this location 1
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 clinical social workers in Fontana 7
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1980 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Holly Hammack specialize in?
Holly Hammack is a clinical social worker in Fontana, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Holly Hammack located?
Holly Hammack is listed at 9961 Sierra Ave, Fontana, CA 92335. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Holly Hammack's phone number?
The number on file is (909) 427-3910. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Holly Hammack's NPI number?
Holly Hammack's National Provider Identifier is 1295939338. 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 Holly Hammack train?
Holly Hammack attended Other, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How long has Holly Hammack been practicing?
Holly Hammack has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
Has Holly Hammack confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Holly Hammack. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.