Lillian Flashner, MD
NPI 1669058517 · Internal Medicine Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lillian Flashner, MD is a Internal Medicine Physician provider in Philadelphia, PA (NPI 1669058517).
Provider details
- NPI number
- 1669058517
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
27 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 27 | $80 |
Typical Medicare-allowed amounts for these services range $80–$80 (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.
Practice location
Mailing address
Additional practice locations (2)
- 72 E Concord St # E124Boston, MA 02118-2642Phone: (617) 638-8000
- 725 Albany StBoston, MA 02118-3549Phone: (617) 414-5951Fax: (617) 414-9251
Registry dates
- Enumerated
- 2021-03-22
- Last updated
- 2024-07-08
- Certified
- 2024-06-29
Frequently asked questions
- What is Lillian Flashner's NPI number?
- Lillian Flashner's National Provider Identifier (NPI) is 1669058517, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lillian Flashner's specialty?
- Lillian Flashner is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lillian Flashner located?
- Lillian Flashner's practice location on file with NPPES is 3400 Spruce St, Philadelphia, PA 19104-4238.
- What is Lillian Flashner's phone number?
- The practice phone number listed in the NPPES registry for Lillian Flashner is (215) 662-3797.
- Does Lillian Flashner accept Medicare?
- Lillian Flashner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lillian Flashner's NPI active?
- Yes — Lillian Flashner's NPI (1669058517) is active in the NPPES registry as of the last update on 2024-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.