Organization provider

SAN DIEGO OB/GYN HOSPITALISTS, INC.

Obstetrics & Gynecology Physician

SAN DIEGO OB/GYN HOSPITALISTS, INC. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1598606477, based in La Mesa, CA. It is classified under Obstetrics & Gynecology Physician.

Getting there

The practice address on file is 5555 GROSSMONT CENTER DR, La Mesa, CA 91942. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

5555 GROSSMONT CENTER DR, La Mesa, CA 91942 Open in Google Maps →

Credentials and Medicare

State licence

NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.

Medicare (PECOS)

This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.

What Obstetrics & Gynecology covers

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women. NUCC Health Care Provider Taxonomy, code 207V00000X
Allopathic & Osteopathic Physicians Obstetrics & Gynecology

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.

NPI1598606477 valid check digit
Entity typeOrganization (NPI-2)
Enumeration dateApr 3, 2026
Last updatedApr 3, 2026
StatusActive
Practice address 5555 GROSSMONT CENTER DR
La Mesa, CA 91942
(619) 740-6000
Mailing address 440 STEVENS AVE STE 370
Solana Beach, CA 92075
This record was updated on Apr 3, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1598606477 passes the NPI check digit test The final digit 7 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 5 9 8 6 0 6 4 7
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 5 9 8 3 0 3 4 5

Sum = 63 · next multiple of 10 = 70 · check digit = 7 · actual last digit = 7

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1598606477?
NPI 1598606477 is the National Provider Identifier assigned to SAN DIEGO OB/GYN HOSPITALISTS, INC. in La Mesa, CA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Obstetrics & Gynecology Physician cover?
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
How do I contact SAN DIEGO OB/GYN HOSPITALISTS, INC.?
The phone number on file with NPPES is (619) 740-6000, last updated Apr 3, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Is NPI 1598606477 a valid number?
Yes. 1598606477 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.