Carolyn Chang, MD
NPI 1598826745 · Plastic and Reconstructive Surgery Physician · San Francisco, CA
Carolyn Chang, MD is a Plastic and Reconstructive Surgery Physician provider in San Francisco, CA (NPI 1598826745).
Provider details
- NPI number
- 1598826745
- Entity type
- Individual
- Primary specialty
- Plastic and Reconstructive Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A54546 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 38 | 34 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 33 | 28 |
| Lorazepam | 26 | 25 |
| Ondansetronbrand: Ondansetron Odt | 25 | 23 |
| Atenolol | 18 | 18 |
| Enoxaparin Sodium | 11 | — |
| Aprepitant | 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.
$521 across 15 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
- 2006-12-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Carolyn Chang's NPI number?
- Carolyn Chang's National Provider Identifier (NPI) is 1598826745, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carolyn Chang's specialty?
- Carolyn Chang is listed in the NPPES registry with a primary specialty of Plastic and Reconstructive Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Carolyn Chang located?
- Carolyn Chang's practice location on file with NPPES is 2100 Webster Street, San Francisco, CA 94115-2374.
- What is Carolyn Chang's phone number?
- The practice phone number listed in the NPPES registry for Carolyn Chang is (415) 923-3067.
- Is Carolyn Chang's NPI active?
- Yes — Carolyn Chang's NPI (1598826745) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.