Andrew Giem, M.D.
NPI 1861616799 · Urology Physician · Stockton, CA
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Giem, M.D. is a Urology Physician provider in Stockton, CA (NPI 1861616799).
Provider details
- NPI number
- 1861616799
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- AC5611000-5984 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 446 | 169 |
| Finasteride | 287 | 101 |
| Mirabegronbrand: Myrbetriq | 75 | 29 |
| Trospium Chloride | 54 | 24 |
| Terazosin Hcl | 53 | 17 |
| Tadalafil | 50 | 24 |
| Dutasteride | 49 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$768 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-12
- Last updated
- 2022-01-25
Frequently asked questions
- What is Andrew Giem's NPI number?
- Andrew Giem's National Provider Identifier (NPI) is 1861616799, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Giem's specialty?
- Andrew Giem is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Andrew Giem located?
- Andrew Giem's practice location on file with NPPES is 2545 W Hammer Ln, Stockton, CA 95209-2839.
- What is Andrew Giem's phone number?
- The practice phone number listed in the NPPES registry for Andrew Giem is (209) 957-7050.
- Does Andrew Giem accept Medicare?
- Andrew Giem is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Giem's NPI active?
- Yes — Andrew Giem's NPI (1861616799) is active in the NPPES registry as of the last update on 2022-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.