Maria Theresa Paz-Lum, MD
NPI 1205082799 · Internal Medicine Physician · San Rafael, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Theresa Paz-Lum, MD is a Internal Medicine Physician provider in San Rafael, CA (NPI 1205082799).
Provider details
- NPI number
- 1205082799
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A109693 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 108 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 420 | 142 |
| Lisinopril | 261 | 103 |
| Levothyroxine Sodium | 251 | 84 |
| Losartan Potassium | 239 | 85 |
| Gabapentin | 213 | 57 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 207 | 39 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-08-15
- Last updated
- 2022-01-10
Frequently asked questions
- What is Maria Theresa Paz-Lum's NPI number?
- Maria Theresa Paz-Lum's National Provider Identifier (NPI) is 1205082799, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Theresa Paz-Lum's specialty?
- Maria Theresa Paz-Lum is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Theresa Paz-Lum located?
- Maria Theresa Paz-Lum's practice location on file with NPPES is 4000 Civic Center Dr, San Rafael, CA 94903-4171.
- What is Maria Theresa Paz-Lum's phone number?
- The practice phone number listed in the NPPES registry for Maria Theresa Paz-Lum is (415) 492-3333.
- Does Maria Theresa Paz-Lum accept Medicare?
- Maria Theresa Paz-Lum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Theresa Paz-Lum's NPI active?
- Yes — Maria Theresa Paz-Lum's NPI (1205082799) is active in the NPPES registry as of the last update on 2022-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.