Doctor profile · Federal record
Dr. Karen Chahal, MD
Internal Medicine Physician (CMS: Internal Medicine) · Cambridge, MA
- NPI 1477083749
- Accepts Medicare
- 9 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
330 Mount Auburn St
Cambridge, MA 021385502
(617) 492-3500 - Mailing address
-
603 Concord Ave Unit 605
Cambridge, MA 021381374
Credentials & registration
- NPI registered
- June 2017 — 9 yrs on file
- Year of graduation
- 2017 — 9 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #271862
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1477083749. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
744
Distinct HCPCS
10
Medicare allowed
$76,028
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 254 | 130 | $126 | |
G0316 |
Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th | 178 | 54 | $32 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 96 | 69 | $84 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 86 | 85 | $184 | |
99239 |
Hospital discharge day management, more than 30 minutes | 41 | 40 | $123 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 27 | 25 | $53 | |
99238 |
Hospital discharge day management, 30 minutes or less | 20 | 20 | $87 | |
99285 |
Emergency department visit with high level of medical decision making | 20 | 20 | $183 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 11 | 11 | $138 | |
99497 |
Advance care planning, first 30 minutes | 11 | 11 | $80 |
In context: peer comparison
Among 70 peers in this city , average services per provider: 94. This provider delivers 7.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
73
Patients
0
Total drug cost
$1,297
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 25 | 0 | $368 |
| Metformin Hcl | Generic | 13 | 0 | $216 |
| Atorvastatin Calcium | Generic | 12 | 0 | $92 |
| Rosuvastatin Calcium | Generic | 12 | 0 | $527 |
| Lisinopril | Generic | 11 | 0 | $92 |
Frequently asked questions
What is Dr. Karen Chahal's medical specialty?
Dr. Karen Chahal practices Internal Medicine Physician in Cambridge, MA.
Where does Dr. Karen Chahal practice?
Dr. Karen Chahal practices at 330 Mount Auburn St, Cambridge, MA 021385502. Office phone: 6174923500.
What is Dr. Karen Chahal's NPI?
Dr. Karen Chahal's National Provider Identifier (NPI) is 1477083749, issued by NPPES.
Does Dr. Karen Chahal accept Medicare assignment?
Yes. Dr. Karen Chahal accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karen Chahal commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (HCPCS G0316); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.