Doctor profile · Federal record
Dr. Samarjit Singh, MD
Pulmonary Disease Physician (CMS: Pulmonary Disease) · Internal Medicine Physician · Critical Care Medicine (Internal Medicine) Physician · Fountain Valley, CA
- NPI 1689786139
- Accepts Medicare
- MIPS 63.0 / 100 · 2023
- 31 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
11100 Warner Ave Ste 120
Fountain Valley, CA 927087500
(714) 672-0049
fax (714) 793-9570 - Mailing address
-
Po Box 3313
Cypress, CA 906307313
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- June 11, 2025
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207RP1001X — NUCC code
- State license (1)
- California #A92484
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1689786139. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
5,401
Distinct HCPCS
10
Medicare allowed
$716,312
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 1,754 | 362 | $125 | |
99291 |
Critical care, first 30-74 minutes | 1,058 | 258 | $222 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 968 | 317 | $134 | |
99292 |
Critical care, each additional 30 minutes | 270 | 189 | $111 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 177 | 149 | $182 | |
96372 |
Injection of drug or substance under skin or into muscle | 168 | 43 | $16 | |
J0517 |
Injection, benralizumab, 1 mg | 127 | 37 | $0 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 118 | 118 | $236 | |
94618 |
Test for exercise-induced lung stress | 99 | 96 | $37 | |
94640 |
Inhalation treatment for airway obstruction or sputum production | 95 | 93 | $11 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 278. This provider delivers 19× the peer median.Open Payments
Industry payments received
All-time total
$5,066
Transactions
134
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Becton, Dickinson and Company | 1 | $1,375.00 | |
| GlaxoSmithKline, LLC. | 23 | $595.07 | |
| AstraZeneca Pharmaceuticals LP | 24 | $571.65 | |
| Regeneron Healthcare Solutions, Inc. | 19 | $507.00 | |
| GENZYME CORPORATION | 9 | $319.52 | |
| Mylan Specialty L.P. | 11 | $273.42 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 9 | $199.79 | |
| Amgen Inc. | 9 | $197.11 | |
| Insmed, Inc. | 8 | $188.74 | |
| ABIOMED | 1 | $120.55 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 4 | $110.61 | |
| Merck Sharp & Dohme LLC | 4 | $109.99 | |
| Grifols USA, LLC | 4 | $88.99 | |
| United Therapeutics Corporation | 5 | $83.86 | |
| Vifor Pharma, Inc. | 3 | $75.17 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
4,822
Patients
1,876
Total drug cost
$2,490,337
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Montelukast Sodium | Generic | 841 | 291 | $13,756 |
| Azelastine Hcl | Generic | 786 | 363 | $28,584 |
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 675 | 159 | $508,935 |
| Prednisone | Generic | 570 | 315 | $2,898 |
| Breo Ellipta (Fluticasone/Vilanterol) | Brand | 385 | 81 | $185,752 |
| Doxycycline Hyclate | Generic | 262 | 187 | $2,188 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 235 | 122 | $7,692 |
| Anoro Ellipta (Umeclidinium Brm/Vilanterol Tr) | Brand | 209 | 47 | $111,423 |
| Pantoprazole Sodium | Generic | 147 | 62 | $1,410 |
| Breztri Aerosphere (Budesonide/Glycopyr/Formoterol) | Brand | 140 | 47 | $103,962 |
Hospital affiliations
Frequently asked questions
What is Dr. Samarjit Singh's medical specialty?
Dr. Samarjit Singh practices Pulmonary Disease Physician in Fountain Valley, CA.
Where does Dr. Samarjit Singh practice?
Dr. Samarjit Singh practices at 11100 Warner Ave Ste 120, Fountain Valley, CA 927087500. Office phone: 7146720049.
What is Dr. Samarjit Singh's NPI?
Dr. Samarjit Singh's National Provider Identifier (NPI) is 1689786139, issued by NPPES.
Does Dr. Samarjit Singh accept Medicare assignment?
Yes. Dr. Samarjit Singh accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Samarjit Singh commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Critical care (HCPCS 99291); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.