Marcus Ryan Davidson , PA-C
Physician Assistant • Lafayette, LA
605 Silverstone Rd Ste 100
Lafayette, LA 70508
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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Marcus Davidson is listed in NPPES under Physician Assistant.
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NPI assigned on February 27, 2017; this date does not establish years in practice.
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Published CMS data list 1,049 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- G2211 — Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's: 288 service units.
- 99214 — Established patient outpatient office visit: 232 service units.
- G0439 — Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit: 109 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 11 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 2,528 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Levothyroxine Sodium — 162 prescription fills, including refills.
- Gabapentin — 145 prescription fills, including refills.
- Atorvastatin Calcium — 101 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 74 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 80% of clinicians listed under Physician Assistant in Lafayette, LA (2024, 51 clinicians with data). Median for this group: 204. Middle half: 71 to 513.
More Medicare Part B services than 90% of clinicians listed under Physician Assistant in Louisiana (2024, 792 clinicians with data). Median for this group: 152. Middle half: 60 to 375.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 186 in 2020 to 1,049 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
605 Silverstone Rd Ste 100
Lafayette, LA 70508
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Coppell, TX. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Kelly L. Cobb, Md, Apmc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2016
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
239 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $66,146 in 2024
The total amount Medicare approved for these services in 2024. 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 – by Provider and Service, 2024.
Paid by Medicare
About $49,122 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, 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 – by Provider and Service, 2024.
30-day fills
5,377 standardized 30-day fills in 2024
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
$244,505 in 2024
The total cost of these prescriptions in 2024, 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 – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $898.21 across 44 records.
By nature of payment
- Food and Beverage: $898.21 across 44 records.
Reporting-company totals (3 largest of 16)
- ABBVIE INC.: $168.72 across 10 records.
- Pfizer Inc.: $116.79 across 5 records.
- REVANCE THERAPEUTICS, INC.: $83.00 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 2025 (published June 30, 2026).
Years since graduation
10 years (graduated 2016)
CMS Doctors and Clinicians data list 2016 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2017
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.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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, “Does your provider accept Medicare as full payment?”
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Marcus Davidson has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Marcus Davidson as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Lafayette and Louisiana
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 80% of clinicians listed under Physician Assistant in Lafayette, LA (2024, 51 clinicians with data). Median for this group: 204. Middle half: 71 to 513.
More Medicare Part B services than 90% of clinicians listed under Physician Assistant in Louisiana (2024, 792 clinicians with data). Median for this group: 152. Middle half: 60 to 375.
Medicare-allowed amount
A higher Medicare-allowed amount than 90% of clinicians listed under Physician Assistant in Lafayette, LA (2024, 51 clinicians with data). Median for this group: $16,234. Middle half: $5,307 to $36,750.
A higher Medicare-allowed amount than 90% of clinicians listed under Physician Assistant in Louisiana (2024, 792 clinicians with data). Median for this group: $10,894. Middle half: $5,077 to $24,029.
Paid by Medicare
A higher Medicare payment amount than 90% of clinicians listed under Physician Assistant in Lafayette, LA (2024, 51 clinicians with data). Median for this group: $11,448. Middle half: $4,012 to $25,002.
A higher Medicare payment amount than 90% of clinicians listed under Physician Assistant in Louisiana (2024, 792 clinicians with data). Median for this group: $8,071. Middle half: $3,792 to $18,129.
Medicare Part D prescriptions
More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Lafayette, LA (2024, 53 clinicians with data). Median for this group: 201. Middle half: 87 to 444.
More Part D prescriptions than 90% of clinicians listed under Physician Assistant in Louisiana (2024, 829 clinicians with data). Median for this group: 241. Middle half: 76 to 655.
Part D drug cost
A higher Part D drug cost than 90% of clinicians listed under Physician Assistant in Lafayette, LA (2024, 53 clinicians with data). Median for this group: $1,874. Middle half: $554 to $14,216.
A higher Part D drug cost than 85% of clinicians listed under Physician Assistant in Louisiana (2024, 829 clinicians with data). Median for this group: $2,829. Middle half: $603 to $27,215.
85 active clinicians are listed under Physician Assistant with a practice address in Lafayette, LA (1,557 in Louisiana).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Lafayette
8.2% of these 85 clinicians have the CMS telehealth indicator.
68.2% of these 85 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 increased 464% from 186 in 2020 to 1,049 in 2024.
- 2020: 186
- 2021: 672
- 2022: 906
- 2023: 759
- 2024: 1,049
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Medicare-allowed amount
Medicare-allowed amount increased 359% from $14,406 in 2020 to $66,146 in 2024.
- 2020: $14,406
- 2021: $50,422
- 2022: $64,643
- 2023: $55,202
- 2024: $66,146
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Paid by Medicare
Paid by Medicare increased 308% from $12,033 in 2020 to $49,122 in 2024.
- 2020: $12,033
- 2021: $39,193
- 2022: $48,845
- 2023: $42,785
- 2024: $49,122
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 211% from 812 in 2020 to 2,528 in 2024.
- 2020: 812
- 2021: 1,531
- 2022: 1,973
- 2023: 2,292
- 2024: 2,528
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30-day fills
30-day fills increased 224% from 1,658 in 2020 to 5,377 in 2024.
- 2020: 1,658
- 2021: 3,147
- 2022: 4,286
- 2023: 5,021
- 2024: 5,377
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Part D drug cost
Part D drug cost increased 823% from $26,483 in 2020 to $244,505 in 2024.
- 2020: $26,483
- 2021: $80,952
- 2022: $113,997
- 2023: $250,340
- 2024: $244,505
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $152.27 in 2021 to $898.21 in 2025.
- 2021: $152.27
- 2022: $459.13
- 2023: $458.93
- 2024: $988.98
- 2025: $898.21
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · 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 2025 (payments made January 1 – December 31, 2025): 44 records totaling $898.21.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| REVANCE THERAPEUTICS, INC. |
Food and Beverage
In-kind items and services
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DAXXIFY | General | $83.00 |
| Itamar Medical Inc |
Food and Beverage
Cash or cash equivalent
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WatchPATONE | General | $31.43 |
| Amneal Pharmaceuticals LLC |
Food and Beverage
In-kind items and services
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UNITHROID | General | $28.39 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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UBRELVY | General | $27.99 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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PREVNAR 20 | General | $27.75 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
UBRELVY | General | $27.07 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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NURTEC ODT | General | $25.75 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
|
Cologuard Collection Kit | General | $24.63 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
SYNTHROID | General | $23.91 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
QULIPTA | General | $22.59 |
| Astellas Pharma US Inc |
Food and Beverage
In-kind items and services
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Veozah | General | $22.29 |
| Astellas Pharma US Inc |
Food and Beverage
In-kind items and services
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Veozah | General | $21.47 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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NURTEC ODT | General | $21.16 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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ZEPBOUND | General | $21.10 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
PREVNAR 20 | General | $21.08 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
NURTEC ODT | General | $21.05 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Wegovy | General | $20.66 |
| Amneal Pharmaceuticals LLC |
Food and Beverage
In-kind items and services
|
UNITHROID | General | $20.44 |
| Astellas Pharma US Inc |
Food and Beverage
In-kind items and services
|
Veozah | General | $20.41 |
| TOLMAR, INC. |
Food and Beverage
In-kind items and services
|
JATENZO | General | $20.39 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Wegovy | General | $19.95 |
| Lundbeck LLC |
Food and Beverage
Cash or cash equivalent
|
VYEPTI | General | $19.82 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
AIRSUPRA | General | $18.62 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
ZEPBOUND | General | $18.33 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
|
Cologuard Collection Kit | General | $18.31 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
|
G2211
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
|
288 | 162 | $30.00 | $13.17 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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232 | 151 | $263.00 | $98.83 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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109 | 109 | $278.00 | $101.80 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
|
98 | 70 | $355.00 | $142.70 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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89 | 73 | $181.00 | $70.02 |
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G0444
Annual depression screening, 5 to 15 minutes
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70 | 70 | $43.00 | $14.49 |
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G0446
Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes
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62 | 62 | $65.00 | $20.06 |
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99490
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month
|
54 | 14 | $110.00 | $49.50 |
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99497
Advance care planning, first 30 minutes
|
18 | 18 | $208.05 | $65.39 |
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G0402
Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment
|
15 | 15 | $402.00 | $130.43 |
|
81002
Urinalysis, manual test
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14 | 13 | $8.70 | $3.41 |
Source: CMS Part B by Provider and Service, 2024; 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 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Levothyroxine Sodium | Levothyroxine Sodium | 162 | 12,062 | $1,430.05 | 46 |
| Gabapentin | Gabapentin | 145 | 5,893 | $609.02 | 32 |
| Atorvastatin Calcium | Atorvastatin Calcium | 101 | 8,252 | $903.17 | 32 |
| Amlodipine Besylate | Amlodipine Besylate | 92 | 6,706 | $430.67 | 30 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 90 | 6,960 | $1,498.13 | 31 |
| Lisinopril | Lisinopril | 85 | 7,182 | $384.28 | 28 |
| Mounjaro | Tirzepatide | 84 | 2,632 | $95,226.05 | 18 |
| Pantoprazole Sodium | Pantoprazole Sodium | 68 | 4,914 | $701.31 | 25 |
| Metformin Hcl | Metformin Hcl | 66 | 4,288 | $283.14 | 18 |
| Montelukast Sodium | Montelukast Sodium | 66 | 5,567 | $654.45 | 25 |
| Trazodone Hcl | Trazodone Hcl | 66 | 4,853 | $354.21 | 19 |
| Meloxicam | Meloxicam | 57 | 2,577 | $82.03 | 16 |
| Pravastatin Sodium | Pravastatin Sodium | 57 | 4,804 | $947.79 | 20 |
| Duloxetine Hcl | Duloxetine Hcl | 52 | 3,807 | $557.23 | 14 |
| Hydrochlorothiazide | Hydrochlorothiazide | 48 | 3,660 | $192.73 | 18 |
| Trulicity | Dulaglutide | 45 | 1,542 | $48,291.57 | 12 |
| Escitalopram Oxalate | Escitalopram Oxalate | 44 | 3,510 | $606.20 | 14 |
| Metoprolol Succinate | Metoprolol Succinate | 42 | 3,500 | $913.33 | 16 |
| Bupropion Hcl Sr | Bupropion Hcl | 42 | 2,100 | $824.69 | — |
| Alprazolam | Alprazolam | 41 | 1,210 | $160.90 | 11 |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 40 | 2,216 | $648.60 | — |
| Fluoxetine Hcl | Fluoxetine Hcl | 38 | 3,210 | $389.66 | 12 |
| Metformin Hcl Er | Metformin Hcl | 38 | 3,180 | $485.70 | 13 |
| Bupropion Xl | Bupropion Hcl | 36 | 2,580 | $1,712.83 | 12 |
| Losartan Potassium | Losartan Potassium | 33 | 2,790 | $415.31 | 13 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20200731000578
LA
5597032748
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Kelly L. Cobb, Md, Apmc
605 Silverstone Rd, Lafayette, LA 705086899
Phone: 3372669985
Secondary Practice Locations
848 S Denton Tap Rd, 100
Coppell, TX 750194556
Phone: 9723935559
605 Silverstone Rd Ste 100
Lafayette, LA 70508
Phone: 3372669985
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 605 SILVERSTONE RD STE 100, LAFAYETTE, LA 70508 (Tel: 3372669985)
Registered at 605 SILVERSTONE RD STE 100, LAFAYETTE, LA 705086899 (Tel: 9723935559)
Physician Assistant (license number reported to NPPES: LA 309327)
NPI status registered as active in NPPES database
Registered at 848 S DENTON TAP RD, 100, COPPELL, TX 750194556 (Tel: 9723935559)
Registered at 848 S DENTON TAP RD, 100, COPPELL, TX 750194556 (Tel: 9723935559)
Recorded as MARCUS DAVIDSON, PA-C
Physician Assistant
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Lafayette
- Alexis Griffin, PA-C
- Emily Walters, PA-C
- Alaina Stolzenthaler, PA-C
- Emily Hundley, PA
- Kevin Kathleen Menard, PA
- Ashley Whitmore, PA-C
Mailing Address
605 Silverstone Rd Ste 100
Lafayette, LA 705086899
Phone: 9723935559