Takako Iwasaki, M.D.
NPI 1639240237 · Dermatology Physician · Torrance, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Takako Iwasaki, M.D. is a Dermatology Physician provider in Torrance, CA (NPI 1639240237).
Provider details
- NPI number
- 1639240237
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- G60009 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
4,751 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) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 1,486 | $7 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,183 | $92 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 612 | $70 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 468 | $130 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 308 | $58 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 117 | 101 |
| Doxycycline Hyclate | 90 | 54 |
| Clobetasol Propionate | 74 | 60 |
| Ketoconazole | 68 | 44 |
| Mupirocin | 23 | 21 |
| Prednisone | 23 | 20 |
| Ruxolitinib Phosphatebrand: Opzelura | 19 | — |
| Betamethasone Dipropionate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,064 across 18 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
- 2006-11-13
- Last updated
- 2015-01-09
Frequently asked questions
- What is Takako Iwasaki's NPI number?
- Takako Iwasaki's National Provider Identifier (NPI) is 1639240237, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Takako Iwasaki's specialty?
- Takako Iwasaki is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Takako Iwasaki located?
- Takako Iwasaki's practice location on file with NPPES is 4201 Torrance Blvd, Torrance, CA 90503-4504.
- What is Takako Iwasaki's phone number?
- The practice phone number listed in the NPPES registry for Takako Iwasaki is (310) 540-0079.
- Does Takako Iwasaki accept Medicare?
- Takako Iwasaki is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Takako Iwasaki's NPI active?
- Yes — Takako Iwasaki's NPI (1639240237) is active in the NPPES registry as of the last update on 2015-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.