Dr. Joseph Grenn is a San Francisco, California based Endodontist who is specialized in
Endodontics. He does not accept the Medicare-approved amount. Patients will be billed for the treatment. Active license number of Dr. Joseph Grenn is
22501 for Endodontics in California. His current practice location is
500 Spruce St, San Francisco. Patients can reach him at
415-221-2900.
Dr. Joseph Grenn deals with the branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions.
Complete Profile:
Dr. Joseph Grenn speciality, credentials, practice address, contact phone number and fax are as below.
Patients can directly walk in or can call on the below given phone number for appointment.
| Name: | Dr. Joseph Grenn |
| Specialization: | Endodontist |
| Gender: | Male |
| Credentials: | D.M.D. |
| Accepts Medicare Assignment: | No |
| Practice Address: | 500 Spruce St, San Francisco,
California, 94118-2648 |
| Phone: | 415-221-2900 |
| Fax: | 415-221-2950 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| NPI Number: | 1245446509 |
| NPI Enumeration Date: | 15 May, 2007 |
| NPI Last Update On: | 08 Jul, 2007 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Joseph Grenn are as mentioned below.
| License Number | Specialization | State | Status | |
| 22501 | Endodontics | California | Primary | |
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | 32 Great Circle Drive,
Mill Valley, California |
| Zip: | 94941-3217 |
| Phone Number: | 415-221-2900 |
| Fax Number: | 415-221-2950 |
Patients can reach Dr. Joseph Grenn at
500 Spruce St, San Francisco, California or can
call to book an appointment on 415-221-2900.
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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on
08 December, 2025.