Katherine Lantsman, M.D.
NPI 1720052475 · Internal Medicine Physician · Boston, MA
Katherine Lantsman, M.D. is a Internal Medicine Physician provider in Boston, MA (NPI 1720052475).
Provider details
- NPI number
- 1720052475
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 237724 (MA)
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
20 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) |
|---|---|
| Liothyronine Sodium | 21 |
| Doxycycline Hyclate | 21 |
| Nystatin | 20 |
| Artemether/Lumefantrinebrand: Coartem | 17 |
| Azithromycin | 16 |
| Hydroxychloroquine Sulfate | 15 |
| Levothyroxine Sodium | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude 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 no Part D record, 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.
$46 across 3 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
- 2006-02-16
- Last updated
- 2013-01-11
Frequently asked questions
- What is Katherine Lantsman's NPI number?
- Katherine Lantsman's National Provider Identifier (NPI) is 1720052475, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Lantsman's specialty?
- Katherine Lantsman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Lantsman located?
- Katherine Lantsman's practice location on file with NPPES is 20 Park Plz, Boston, MA 02116-4303.
- What is Katherine Lantsman's phone number?
- The practice phone number listed in the NPPES registry for Katherine Lantsman is (617) 948-2577.
- Is Katherine Lantsman's NPI active?
- Yes — Katherine Lantsman's NPI (1720052475) is active in the NPPES registry as of the last update on 2013-01-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.