Phyu Phyu Lim, MD
NPI 1043534803 · Geriatric Medicine (Internal Medicine) Physician · Fremont, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Phyu Phyu Lim, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Fremont, CA (NPI 1043534803).
Provider details
- NPI number
- 1043534803
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A110218 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
206 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 131 | $88 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 63 | $90 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 12 | $133 |
Typical Medicare-allowed amounts for these services range $88–$133 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 51 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 392 | 12 |
| Baclofen | 225 | — |
| Gabapentin | 167 | — |
| Benazepril Hcl | 151 | — |
| Levetiracetam | 139 | — |
| Finasteride | 126 | — |
| Lidocaine | 98 | — |
| Lamotrigine | 92 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-03-23
- Last updated
- 2011-09-29
Frequently asked questions
- What is Phyu Phyu Lim's NPI number?
- Phyu Phyu Lim's National Provider Identifier (NPI) is 1043534803, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Phyu Phyu Lim's specialty?
- Phyu Phyu Lim is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Phyu Phyu Lim located?
- Phyu Phyu Lim's practice location on file with NPPES is 159 Washington Blvd, Fremont, CA 94539-5209.
- What is Phyu Phyu Lim's phone number?
- The practice phone number listed in the NPPES registry for Phyu Phyu Lim is (510) 249-2700.
- Does Phyu Phyu Lim accept Medicare?
- Phyu Phyu Lim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Phyu Phyu Lim's NPI active?
- Yes — Phyu Phyu Lim's NPI (1043534803) is active in the NPPES registry as of the last update on 2011-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.