Dr. Robert Don Merrill , DO
General Practice β’ Las Vegas, NV
517 Rose St
Las Vegas, NV 891064020
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Robert Merrill is listed in NPPES under General Practice.
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NPI assigned on July 18, 2006; this date does not establish years in practice.
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Published CMS data list 33 Original Medicare Part B services in 2019.
Source: CMS, Medicare Physician & Other Practitioners β by Provider and Service, 2019. Published rows only; this is not a quality measure.
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Published Part B service records, 2019:
- G0101 β Cervical or vaginal cancer screening; pelvic and clinical breast examination: 17 service units.
- Q0091 β Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory: 16 service units.
Source: CMS, Medicare Physician & Other Practitioners β by Provider and Service, 2019. Units differ by code; these are not visits or a measure of quality.
See the full table Β· Guide: How to read Medicare Part B data
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Published CMS data list 207 Medicare Part D prescriptions, including refills, in 2020.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2020. Published rows only; this is not a quality measure.
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Published Part D records, 2020:
- Estradiol β 82 prescription fills, including refills.
- Trazodone Hcl β 18 prescription fills, including refills.
- Alprazolam β 17 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2020. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 10 records in the table Β· Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 35 in 2017 to 33 in 2019.
Source: CMS, Medicare Physician & Other Practitioners β by Provider and Service, 2017β2019.
Practice Location & Contact Primary Location
517 Rose St
Las Vegas, NV 891064020
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 2 distinct additional practice-address records in Las Vegas, NV; North Las Vegas, NV. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $1,304 in 2019
The total amount Medicare approved for these services in 2019. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners β by Provider and Service, 2019.
Paid by Medicare
About $1,304 in 2019
The part of the Medicare-allowed amount that Medicare itself paid in 2019, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners β by Provider and Service, 2019.
30-day fills
418 standardized 30-day fills in 2020
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$15,946 in 2020
The total cost of these prescriptions in 2020, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2020.
Open Payments general payments, program year 2020
All general payments: $97.28 across 7 records.
By nature of payment
- Food and Beverage: $97.28 across 7 records.
Reporting-company totals (3 largest of 5)
- AbbVie Inc.: $31.01 across 2 records.
- Allergan, Inc.: $23.99 across 2 records.
- Bayer HealthCare Pharmaceuticals Inc.: $19.45 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2020 (published June 30, 2026).
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Las Vegas and Nevada
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Merrill are from 2019.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Merrill are from 2020.
34 active clinicians are listed under General Practice with a practice address in Las Vegas, NV (70 in Nevada).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Las Vegas
8.8% of these 34 clinicians have the CMS telehealth indicator.
26.5% of these 34 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services varied from year to year: 35 in 2017 and 33 in 2019.
- 2017: 35
- 2018: 23
- 2019: 33
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Medicare-allowed amount
Medicare-allowed amount varied from year to year: $1,262 in 2017 and $1,304 in 2019.
- 2017: $1,262
- 2018: $821
- 2019: $1,304
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Paid by Medicare
Paid by Medicare varied from year to year: $1,262 in 2017 and $1,304 in 2019.
- 2017: $1,262
- 2018: $821
- 2019: $1,304
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Medicare Part D prescriptions
Medicare Part D prescriptions stayed about the same: 190 in 2016 and 207 in 2020.
- 2016: 190
- 2017: 212
- 2018: 262
- 2019: 250
- 2020: 207
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30-day fills
30-day fills increased 22% from 341 in 2016 to 418 in 2020.
- 2016: 341
- 2017: 437
- 2018: 521
- 2019: 537
- 2020: 418
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Part D drug cost
Part D drug cost increased 75% from $9,115 in 2016 to $15,946 in 2020.
- 2016: $9,115
- 2017: $9,824
- 2018: $13,380
- 2019: $21,144
- 2020: $15,946
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $182.76 in 2019 to $97.28 in 2020.
- 2019: $182.76
- 2020: $97.28
Sources: CMS Medicare Physician & Other Practitioners (2019), CMS Medicare Part D Prescribers (2020), CMS Open Payments (2020), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2020 (payments made January 1 β December 31, 2020): fewer than 11 records totaling $97.28.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Bayer HealthCare Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
Kyleena | General | $19.45 |
| AbbVie Inc. |
Food and Beverage
In-kind items and services
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ORILISSA | General | $15.82 |
| AbbVie Inc. |
Food and Beverage
In-kind items and services
|
ORILISSA | General | $15.19 |
| Allergan, Inc. |
Food and Beverage
In-kind items and services
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LO LOESTRIN FE | General | $12.38 |
| Allergan, Inc. |
Food and Beverage
In-kind items and services
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LO LOESTRIN FE | General | $11.61 |
| Lupin Inc. |
Food and Beverage
In-kind items and services
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SOLOSEC | General | $11.59 |
| Zyla Life Sciences, Inc. |
Food and Beverage
In-kind items and services
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SPRIX | General | $11.24 |
Source: CMS Open Payments, program year 2020, released June 30, 2026.
Performed Procedures & Service Volume
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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G0101
Cervical or vaginal cancer screening; pelvic and clinical breast examination
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17 | 17 | $71.50 | $37.59 |
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Q0091
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory
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16 | 16 | $75.00 | $41.56 |
Source: CMS Part B by Provider and Service, 2019; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2020.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Estradiol | Estradiol | 82 | 6,360 | $2,578.81 | 26 |
| Trazodone Hcl | Trazodone Hcl | 18 | 1,080 | $822.15 | β |
| Alprazolam | Alprazolam | 17 | 520 | $194.96 | β |
| Levothyroxine Sodium | Levothyroxine Sodium | 17 | 1,050 | $366.92 | β |
| Premarin | Estrogens, Conjugated | 14 | 780 | $4,521.62 | β |
| Ibuprofen | Ibuprofen | 12 | 210 | $108.63 | β |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 12 | 274 | $661.15 | β |
| Myrbetriq | Mirabegron | 12 | 420 | $5,856.14 | β |
| Duloxetine Hcl | Duloxetine Hcl | 12 | 540 | $622.48 | β |
| Medroxyprogesterone Acetate | Medroxyprogesterone Acetate | 11 | 990 | $213.22 | β |
Source: CMS Part D by Provider and Drug, 2020; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2022-03-11NUCC Taxonomy Code: 208D00000X
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
NUCC Taxonomy Code: 207V00000X
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
NUCC Taxonomy Code: 207V00000X
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
Secondary Practice Locations
3930 W Ann Rd
North Las Vegas, NV 890313841
Phone: 7024384692
6250 N Durango Dr
Las Vegas, NV 891493916
Phone: 7024384692
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner
Advanced Practice Registered Nurse
Nurse Practitioner
Advanced Practice Registered Nurse
Midwife
APRNCNM
Obstetrics & Gynecology
Doctor of Medicine (M.D.)
Advanced Practice Midwife
APRNCNM
Nurse Practitioner
APRNFNPC
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 2615 W DRY CREEK DR, RIVERTON, UT 840656768 (Tel: 8019959933)
Registered at 517 ROSE ST, LAS VEGAS, NV 891064020 (Tel: 7024384692)
Registered at 8906 SPANISH RIDGE AVE STE 202, LAS VEGAS, NV 891481319 (Tel: 7023303102)
Registered at 97 PROFESSIONAL WAY STE 2, PAYSON, UT 846511680 (Tel: 8014654896)
Registered at 1055 N 500 W, ATTN CREDENTIALING, PROVO, UT 846048100 (Tel: 8013548225)
NPI status registered as active in NPPES database
Registered at 5770 S 250 E, SUITE G-50, SALT LAKE CITY, UT 841078100 (Tel: 8013144440)
Registered at 5770 S 250 E, SUITE G-50, SALT LAKE CITY, UT 841078100 (Tel: 8013144440)
Recorded as ROBERT MERRILL, DO
Obstetrics & Gynecology (license number reported to NPPES: UT 5583587-1204)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other General Practices in Las Vegas
- Dr. Tawni Christensen, MD
- Dr. Daniel Golden, MD
- Dr. Heraganahally Sundar Raj, MD
- Dr. Terry Pfau, DO, HMD
- Dr. Hans Hulsebos, MD, MS
- Dr. Bradley Walker, MD
Mailing Address
2615 W Dry Creek Dr
Riverton, UT 840656768
Phone: 8019959933