MR. GAUTAM NARESH MANKANEY MD
Prescription History 1053677310
Internal Medicine - Gastroenterology in Seattle, WA
What does Dr. Mankaney prescribe?
In 2024, Dr. Mankaney wrote 818 Medicare prescriptions for 12 medications. The most prescribed was Ondansetron Hcl, with 268 prescriptions for 259 patients.
Medicare Part D only. These are prescriptions filled by people with Medicare drug coverage in 2024, from the CMS data released in 2026, the most recent year available. CMS does not publish medications with fewer than 11 prescriptions, so this is not a full list of what Dr. Mankaney prescribes.
Medications 12 medications
Prescriptions filled under Medicare Part D in 2024. Select a medication to see what it is used for and how it compares with other Washington prescribers.
What it is used for
This medication is used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy.
Compared with Washington prescribers
Dr. Mankaney wrote 268 prescriptions for Ondansetron Hcl, about 9.2 times as often as the typical Washington prescriber of it (29). Medicare paid $1.52 per fill, versus $11.67 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
PEG (polyethylene glycol) with electrolyte is used to clean out the intestines before certain bowel exam procedures such as colonoscopy or barium enema X-rays.
Compared with Washington prescribers
Dr. Mankaney wrote 127 prescriptions for Gavilyte-G, about 2.5 times as often as the typical Washington prescriber of it (51). Medicare paid $14.50 per fill, versus $16.74 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
PEG (polyethylene glycol) with electrolyte is used to clean out the intestines before certain bowel exam procedures such as colonoscopy or barium enema X-rays.
Compared with Washington prescribers
Dr. Mankaney wrote 115 prescriptions for Peg-3350 And Electrolytes, about 2.3 times as often as the typical Washington prescriber of it (51). Medicare paid $13.90 per fill, versus $16.02 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with Washington prescribers
Dr. Mankaney wrote 74 prescriptions for Pantoprazole Sodium, about 1.5 times as often as the typical Washington prescriber of it (49). Medicare paid $27.49 per fill, versus $14.19 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
PEG (polyethylene glycol) with electrolyte is used to clean out the intestines before certain bowel exam procedures such as colonoscopy or barium enema X-rays.
Compared with Washington prescribers
Dr. Mankaney wrote 54 prescriptions for Gavilyte-C, about 77% as often as the typical Washington prescriber of it (71). Medicare paid $14.83 per fill, versus $19.41 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
PEG (polyethylene glycol) with electrolyte is used to clean out the intestines before certain bowel exam procedures such as colonoscopy or barium enema X-rays.
Compared with Washington prescribers
Dr. Mankaney wrote 50 prescriptions for Peg 3350-Electrolyte, about as often as the typical Washington prescriber of it (45). Medicare paid $23.30 per fill, versus $23.77 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with Washington prescribers
Dr. Mankaney wrote 49 prescriptions for Omeprazole, about 63% as often as the typical Washington prescriber of it (78). Medicare paid $12.03 per fill, versus $15.28 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat a certain bowel disease (ulcerative colitis).
Compared with Washington prescribers
Dr. Mankaney wrote 21 prescriptions for Mesalamine, about 78% as often as the typical Washington prescriber of it (27). Medicare paid $240.81 per fill, versus $426.02 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Sodium/potassium/magnesium sulfate solution is used to clean out the intestines before a certain bowel exam procedure (colonoscopy).
Compared with Washington prescribers
Dr. Mankaney wrote 20 prescriptions for Sod Sulf-Potass Sulf-Mag Sulf, about 31% as often as the typical Washington prescriber of it (64). Medicare paid $59.22 per fill, versus $63.80 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Adalimumab is used to reduce pain and swelling due to certain types of arthritis (such as rheumatoid, psoriatic, juvenile idiopathic, ankylosing spondylitis).
Compared with Washington prescribers
Dr. Mankaney wrote 17 prescriptions for Humira(Cf) Pen, about half as often as the typical Washington prescriber of it (31). Medicare paid $9,795.27 per fill, versus $8,778.40 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat and prevent ulcers in the intestines.
Compared with Washington prescribers
Dr. Mankaney wrote 12 prescriptions for Sucralfate, about half as often as the typical Washington prescriber of it (21). Medicare paid $69.70 per fill, versus $55.13 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Cholestyramine is used along with a proper diet to lower cholesterol in the blood.
Compared with Washington prescribers
Dr. Mankaney wrote 11 prescriptions for Prevalite, about as often as the typical Washington prescriber of it (12). Medicare paid $105.60 per fill, versus $79.70 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Dr. Mankaney’s prescriptions
What does Dr. Mankaney prescribe most?
In 2024 Medicare Part D data, Dr. Mankaney's most prescribed medications were Ondansetron Hcl (268), Gavilyte-G (127) and Peg-3350 And Electrolytes (115).
How does Dr. Mankaney's prescribing compare with other Washington prescribers?
Of the 12 medications with a state comparison, Dr. Mankaney prescribes 4 more often than the typical Washington prescriber, 4 about as often and 4 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Mankaney prescribes?
No. It covers prescriptions filled by people with Medicare Part D drug coverage in 2024, and CMS leaves out any medication with fewer than 11 prescriptions.
About this data
This page shows one provider’s slice of public Medicare files. NPI Profile does not receive prescriptions or patient records.
| Source | What it provides here | Data year |
|---|---|---|
| CMS Medicare Part D Prescribers by Provider and Drug | Each medication, prescriptions, patients, 30-day fills, days of medication and cost. State comparisons average the Washington prescribers of the same medication and form, where at least five wrote it. | 2024 (released 2026, the most recent available) |
| CMS Medicare Part D Drug Spending Dashboard | What each medication is used for. | 2024 |
- Only prescriptions filled by people with Medicare Part D drug coverage are counted. Private insurance, Medicaid and cash purchases are not.
- CMS leaves out medications with fewer than 11 prescriptions and hides patient counts under 11.
- Cost per fill is what the plan and the patient paid the pharmacy together, not what you pay at the counter.
- Medication descriptions are summaries from CMS. They are not medical advice; ask a health care professional about any medication.
