Thien-Kim Co, DO
NPI 1033732953 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thien-Kim Co, DO is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1033732953).
Provider details
- NPI number
- 1033732953
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
591 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 Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 507 | $102 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 42 | $182 |
| Advance Care Planning, First 30 Minutes99497 | 42 | $78 |
Typical Medicare-allowed amounts for these services range $78–$182 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Pravastatin Sodium | 34 |
| Metformin Hcl | 28 |
| Losartan Potassium | 18 |
| Allopurinol | 15 |
| Tamsulosin Hcl | 15 |
| Furosemide | 14 |
| Entecavir | 12 |
| Amlodipine Besylate | 11 |
| Calcitriol | 11 |
| Hydralazine Hcl | 11 |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$545 across 20 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
- 2020-05-27
- Last updated
- 2023-06-25
- Certified
- 2023-06-25
Frequently asked questions
- What is Thien-Kim Co's NPI number?
- Thien-Kim Co's National Provider Identifier (NPI) is 1033732953, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thien-Kim Co's specialty?
- Thien-Kim Co is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thien-Kim Co located?
- Thien-Kim Co's practice location on file with NPPES is 1720 E Cesar E Chavez Ave, Los Angeles, CA 90033-2414.
- What is Thien-Kim Co's phone number?
- The practice phone number listed in the NPPES registry for Thien-Kim Co is (323) 268-5000.
- Does Thien-Kim Co accept Medicare?
- Thien-Kim Co is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thien-Kim Co's NPI active?
- Yes — Thien-Kim Co's NPI (1033732953) is active in the NPPES registry as of the last update on 2023-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.