Grace Lin, M.D.
NPI 1114167178 · Nephrology Physician · Whittier, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Lin, M.D. is a Nephrology Physician provider in Whittier, CA (NPI 1114167178).
Provider details
- NPI number
- 1114167178
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A106746 (CA)
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 tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,699 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 1,319 | $81 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 132 | $135 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 99 | $85 |
| Hemodialysis Procedure With Physician Evaluation90935 | 63 | $73 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 30 | $85 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 36 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 103 | 36 |
| Furosemide | 90 | 29 |
| Sodium Zirconium Cyclosilicatebrand: Lokelma | 84 | 16 |
| Dapagliflozin Propanediolbrand: Farxiga | 83 | 14 |
| Losartan Potassium | 63 | 22 |
| Hydralazine Hcl | 52 | 20 |
| Lisinopril | 51 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$286 across 5 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
- 2009-03-03
- Last updated
- 2020-04-11
- Certified
- 2020-04-11
Frequently asked questions
- What is Grace Lin's NPI number?
- Grace Lin's National Provider Identifier (NPI) is 1114167178, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Lin's specialty?
- Grace Lin is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Lin located?
- Grace Lin's practice location on file with NPPES is 12462 Putnam St Ste 506, Whittier, CA 90602-1049.
- What is Grace Lin's phone number?
- The practice phone number listed in the NPPES registry for Grace Lin is (626) 988-1415.
- Does Grace Lin accept Medicare?
- Grace Lin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Lin's NPI active?
- Yes — Grace Lin's NPI (1114167178) is active in the NPPES registry as of the last update on 2020-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.