Doctor profile · Federal record

Dr. Lisa Walke, MD

Geriatric Medicine (Internal Medicine) Physician (CMS: Geriatric Medicine) · Philadelphia, PA

  • NPI 1548243751
  • Accepts Medicare
  • MIPS 85.5 / 100 · 2023
  • 29 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3615 Chestnut St
Philadelphia, PA 19104
(215) 662-2746
fax (215) 349-5648

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
June 6, 2018
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
207RG0300X — NUCC code
State license (1)
Pennsylvania #MD463909
Medicaid
CT #001389891

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548243751. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
296
Distinct HCPCS
8
Medicare allowed
$33,019
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 70 23 $124
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 66 22 $82
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or 43 23 $32
99215 Established patient office or other outpatient visit, 40-54 minutes 42 29 $149
99205 New patient office or other outpatient visit, 60-74 minutes 24 24 $188
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 20 20 $180
99238 Hospital discharge day management, 30 minutes or less 20 20 $84
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 11 11 $135

In context: peer comparison

Among 11 peers in Philadelphia Geriatric Medicine (Internal Medicine) Physician, average services per provider: 80. This provider delivers 3.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
165
Patients
11
Total drug cost
$9,949
Drug Type Claims Patients Total cost
Donepezil Hcl Generic 51 11 $454
Rivastigmine Generic 36 0 $8,292
Sertraline Hcl Generic 16 0 $411
Mirtazapine Generic 15 0 $194
Donepezil Hcl Odt (Donepezil Hcl) Brand 12 0 $89
Olanzapine Generic 12 0 $303
Trazodone Hcl Generic 12 0 $160
Buspirone Hcl Generic 11 0 $46

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Lisa Walke's medical specialty?
Dr. Lisa Walke practices Geriatric Medicine (Internal Medicine) Physician in Philadelphia, PA.
Where does Dr. Lisa Walke practice?
Dr. Lisa Walke practices at 3615 Chestnut St, Philadelphia, PA 19104. Office phone: 2156622746.
What is Dr. Lisa Walke's NPI?
Dr. Lisa Walke's National Provider Identifier (NPI) is 1548243751, issued by NPPES.
Does Dr. Lisa Walke accept Medicare assignment?
Yes. Dr. Lisa Walke accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lisa Walke commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (HCPCS G2212). Source: CMS Medicare Physician & Other Practitioners file.