Lia Rosenberg, PA
NPI 1821577727 · Physician Assistant · Cambridge, MA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lia Rosenberg, PA is a Physician Assistant provider in Cambridge, MA (NPI 1821577727).
Provider details
- NPI number
- 1821577727
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- PA7187 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
- Physician Assistant363A00000X
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
89 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 | 38 | $81 |
| 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 | 28 | $15 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 23 | $60 |
Typical Medicare-allowed amounts for these services range $15–$81 (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 · 45 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 79 | 28 |
| Lisinopril | 76 | 25 |
| Amlodipine Besylate | 62 | 15 |
| Atorvastatin Calcium | 58 | 18 |
| Duloxetine Hcl | 54 | 12 |
| Metoprolol Succinate | 44 | 13 |
| Levothyroxine Sodium |
Practice location
Mailing address
Additional practice locations (1)
- 2067 Massachusetts AveCambridge, MA 02140-1340Phone: (617) 575-5570
Registry dates
- Enumerated
- 2018-08-10
- Last updated
- 2019-03-07
Frequently asked questions
- What is Lia Rosenberg's NPI number?
- Lia Rosenberg's National Provider Identifier (NPI) is 1821577727, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lia Rosenberg's specialty?
- Lia Rosenberg is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Lia Rosenberg located?
- Lia Rosenberg's practice location on file with NPPES is 237 Hampshire St, Cambridge, MA 02139.
- What is Lia Rosenberg's phone number?
- The practice phone number listed in the NPPES registry for Lia Rosenberg is (617) 575-5570.
- Does Lia Rosenberg accept Medicare?
- Lia Rosenberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lia Rosenberg's NPI active?
- Yes — Lia Rosenberg's NPI (1821577727) is active in the NPPES registry as of the last update on 2019-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.