Doctor profile · Federal record
Dr. Carl Geahchan, M.D
Critical Care Medicine (Anesthesiology) Physician (CMS: Anesthesiology) · Boston, MA
- NPI 1902272776
- Accepts Medicare
- 14 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
800 Washington St, Department of Surgery
Boston, MA 021111552
(617) 636-8003 - Mailing address
-
120 Kingston St, Unit 2001
Boston, MA 021112157
Credentials & registration
- NPI registered
- August 2015 — 11 yrs on file
- Profile last updated
- February 19, 2024
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207LC0200X — NUCC code
- State license (1)
- Massachusetts #287954
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1902272776. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
258
Distinct HCPCS
4
Medicare allowed
$47,985
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 203 | 61 | $225 | |
36620 |
Insertion of artery tube for blood sampling or infusion through skin | 25 | 23 | $46 | |
76937 |
Ultrasonic guidance for blood vessel access | 18 | 16 | $15 | |
36556 |
Insertion of non-tunneled central venous tube for infusion (5 years or older) | 12 | 11 | $80 |
In context: peer comparison
Among 16 peers in Boston Critical Care Medicine (Anesthesiology) Physician, average services per provider: 42. This provider delivers 6.1× the peer median.Open Payments
Industry payments received
All-time total
$15
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Masimo Corporation | 1 | $15.40 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Carl Geahchan's medical specialty?
Dr. Carl Geahchan practices Critical Care Medicine (Anesthesiology) Physician in Boston, MA.
Where does Dr. Carl Geahchan practice?
Dr. Carl Geahchan practices at 800 Washington St, Boston, MA 021111552. Office phone: 6176368003.
What is Dr. Carl Geahchan's NPI?
Dr. Carl Geahchan's National Provider Identifier (NPI) is 1902272776, issued by NPPES.
Does Dr. Carl Geahchan accept Medicare assignment?
Yes. Dr. Carl Geahchan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Carl Geahchan commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Insertion of artery tube for blood sampling or infusion through skin (HCPCS 36620); Ultrasonic guidance for blood vessel access (HCPCS 76937). Source: CMS Medicare Physician & Other Practitioners file.