Lauren Malishchak, MD
NPI 1801386008 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lauren Malishchak, MD is a Internal Medicine Physician provider in Boston, MA (NPI 1801386008).
Provider details
- NPI number
- 1801386008
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 286500 (MA)
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 tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
223 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 102 | $101 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 53 | $82 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 28 | $139 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 22 | $17 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 18 | $102 |
Typical Medicare-allowed amounts for these services range $17–$139 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 58 | 22 |
| Oxycodone Hcl | 45 | — |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 44 | 16 |
| Hydromorphone Hcl | 30 | — |
| Amlodipine Besylate | 29 | 11 |
| Gabapentin | 25 | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-05-14
- Last updated
- 2024-06-06
- Certified
- 2024-06-06
Frequently asked questions
- What is Lauren Malishchak's NPI number?
- Lauren Malishchak's National Provider Identifier (NPI) is 1801386008, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lauren Malishchak's specialty?
- Lauren Malishchak is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lauren Malishchak located?
- Lauren Malishchak's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is Lauren Malishchak's phone number?
- The practice phone number listed in the NPPES registry for Lauren Malishchak is (617) 732-5500.
- Does Lauren Malishchak accept Medicare?
- Lauren Malishchak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lauren Malishchak's NPI active?
- Yes — Lauren Malishchak's NPI (1801386008) is active in the NPPES registry as of the last update on 2024-06-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.