Lydia Barlow
NPI 1972986388 · Internal Medicine Physician · Cambridge, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lydia Barlow is a Internal Medicine Physician provider in Cambridge, MA (NPI 1972986388).
Provider details
- NPI number
- 1972986388
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 263328 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 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
500 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 | 168 | $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 | 86 | $17 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 83 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 63 | $99 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 50 | $141 |
| Hemoglobin A1c Level |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 57 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 366 | 101 |
| Amlodipine Besylate | 170 | 52 |
| Losartan Potassium | 117 | 31 |
| Levothyroxine Sodium | 114 | 28 |
| Metoprolol Succinate | 98 | 27 |
| Apixabanbrand: Eliquis | 97 | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-07-02
- Last updated
- 2015-07-02
Frequently asked questions
- What is Lydia Barlow's NPI number?
- Lydia Barlow's National Provider Identifier (NPI) is 1972986388, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lydia Barlow's specialty?
- Lydia Barlow is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lydia Barlow located?
- Lydia Barlow's practice location on file with NPPES is 330 Mount Auburn St, Cambridge, MA 02138-5502.
- What is Lydia Barlow's phone number?
- The practice phone number listed in the NPPES registry for Lydia Barlow is (617) 492-3500.
- Does Lydia Barlow accept Medicare?
- Lydia Barlow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lydia Barlow's NPI active?
- Yes — Lydia Barlow's NPI (1972986388) is active in the NPPES registry as of the last update on 2015-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.