Doctor profile · Federal record
Dr. Alejandra Castillo-Roth, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Gastroenterology Physician · Santa Fe, NM
- NPI 1124222401
- Accepts Medicare
- MIPS 100.0 / 100 · 2023
- 28 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1691 Galisteo St Ste C
Santa Fe, NM 875054781
(505) 983-5631
fax (505) 982-5605
Credentials & registration
- NPI registered
- June 2007 — 19 yrs on file
- Profile last updated
- August 18, 2025
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- New Mexico #MD2010-0309 · North Carolina #2008-01739
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124222401. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
880
Distinct HCPCS
10
Medicare allowed
$135,222
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 233 | 233 | $247 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 128 | 126 | $107 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 101 | 95 | $103 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 71 | 71 | $79 | |
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 71 | 71 | $5 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 40 | 40 | $179 | |
99153 |
Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes | 35 | 32 | $10 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 33 | 33 | $178 | |
43264 |
Removal of stone or debris from bile or pancreatic duct using a flexible endoscope | 28 | 24 | $209 | |
43237 |
Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth | 26 | 26 | $184 |
In context: peer comparison
Among 3 peers in Santa Fe Gastroenterology Physician, average services per provider: 61. This provider delivers 14× the peer median.Open Payments
Industry payments received
All-time total
$1,331
Transactions
51
Manufacturers
13
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Biotech, INC. | 13 | $302.90 | |
| Abbvie INC. | 12 | $171.54 | |
| Medtronic, INC. | 2 | $164.42 | |
| Phathom Pharmaceuticals, INC. | 2 | $140.63 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 6 | $123.01 | |
| Boston Scientific Corporation | 2 | $115.39 | |
| Takeda Pharmaceuticals U.S.A., INC. | 4 | $104.76 | |
| Aimmune Therapeutics, INC. | 3 | $61.14 | |
| Pfizer INC. | 3 | $59.94 | |
| Organon LLC | 1 | $25.19 | |
| Celgene Corporation | 1 | $22.14 | |
| Celltrion USA INC. | 1 | $20.23 | |
| Madrigal Pharmaceuticals | 1 | $19.95 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
791
Patients
642
Total drug cost
$40,970
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 507 | 495 | $12,315 |
| Omeprazole | Generic | 171 | 95 | $2,128 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 38 | 37 | $752 |
| Pantoprazole Sodium | Generic | 38 | 15 | $639 |
| Creon (Lipase/Protease/Amylase) | Brand | 20 | 0 | $24,930 |
| Propranolol Hcl | Generic | 17 | 0 | $206 |
Frequently asked questions
What is Dr. Alejandra Castillo-Roth's medical specialty?
Dr. Alejandra Castillo-Roth practices Gastroenterology Physician in Santa Fe, NM.
Where does Dr. Alejandra Castillo-Roth practice?
Dr. Alejandra Castillo-Roth practices at 1691 Galisteo St Ste C, Santa Fe, NM 875054781. Office phone: 5059835631.
What is Dr. Alejandra Castillo-Roth's NPI?
Dr. Alejandra Castillo-Roth's National Provider Identifier (NPI) is 1124222401, issued by NPPES.
Does Dr. Alejandra Castillo-Roth accept Medicare assignment?
Yes. Dr. Alejandra Castillo-Roth accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alejandra Castillo-Roth commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43235); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.