Doctor profile · Federal record
Dr. Lawrence Walser, M.D.
Pulmonary Disease Physician (CMS: Pulmonary Disease) · Critical Care Medicine (Internal Medicine) Physician · Riverhead, NY
- NPI 1669486023
- Accepts Medicare
- 47 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
185 Old Country RD, Suite 3
Riverhead, NY 119012121
(631) 727-2523
fax (631) 727-7353
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- June 8, 2011
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 207RP1001X — NUCC code
- State license (1)
- New York #149921
- Medicaid
- NY #00828533
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1669486023. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
222
Distinct HCPCS
5
Medicare allowed
$40,001
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 93 | 47 | $249 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 56 | 41 | $91 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 36 | 34 | $151 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 20 | 20 | $200 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 17 | 15 | $137 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 98. This provider delivers 2.3× the peer median.Open Payments
Industry payments received
All-time total
$24
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABIOMED | 1 | $23.88 |
By nature of payment
Frequently asked questions
What is Dr. Lawrence Walser's medical specialty?
Dr. Lawrence Walser practices Pulmonary Disease Physician in Riverhead, NY.
Where does Dr. Lawrence Walser practice?
Dr. Lawrence Walser practices at 185 Old Country RD, Riverhead, NY 119012121. Office phone: 6317272523.
What is Dr. Lawrence Walser's NPI?
Dr. Lawrence Walser's National Provider Identifier (NPI) is 1669486023, issued by NPPES.
Does Dr. Lawrence Walser accept Medicare assignment?
Yes. Dr. Lawrence Walser accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lawrence Walser commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.