Tammy R Wall , PA-C
Physician Assistant • Corpus Christi, TX
4254 S Alameda St
Corpus Christi, TX 784122469
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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NPI assigned on August 28, 2006; this date does not establish years in practice.
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Published CMS data list 619 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:
- 99214 — Established patient outpatient office visit: 133 service units.
- 99213 — Established patient outpatient office visit: 89 service units.
- G0439 — Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit: 55 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 14 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 2,751 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:
- Atorvastatin Calcium — 194 prescription fills, including refills.
- Omeprazole — 183 prescription fills, including refills.
- Lisinopril — 141 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 62 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 60% of clinicians listed under Physician Assistant in Corpus Christi, TX (2024, 38 clinicians with data). Median for this group: 438. Middle half: 106 to 1,062.
More Medicare Part B services than 75% of clinicians listed under Physician Assistant in Texas (2024, 4,400 clinicians with data). Median for this group: 211. Middle half: 76 to 593.
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 184 in 2020 to 619 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
4254 S Alameda St
Corpus Christi, TX 784122469
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Conviva Medical Center Management Of Texas, P.A.. 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
2003
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
126 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 $29,596 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 $22,905 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
5,867 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
$286,751 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: $266.05 across 13 records.
By nature of payment
- Food and Beverage: $266.05 across 13 records.
Reporting-company totals (3 largest of 8)
- Novo Nordisk Inc: $68.73 across 3 records.
- GlaxoSmithKline, LLC.: $51.30 across 3 records.
- Eli Lilly and Company: $31.13 across 2 records.
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
23 years (graduated 2003)
CMS Doctors and Clinicians data list 2003 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
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.
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?”
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.
Enrolled in Medicare (PECOS)
Tammy Wall 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 Tammy Wall 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 Corpus Christi and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 60% of clinicians listed under Physician Assistant in Corpus Christi, TX (2024, 38 clinicians with data). Median for this group: 438. Middle half: 106 to 1,062.
More Medicare Part B services than 75% of clinicians listed under Physician Assistant in Texas (2024, 4,400 clinicians with data). Median for this group: 211. Middle half: 76 to 593.
Medicare-allowed amount
Close to the middle for clinicians listed under Physician Assistant in Corpus Christi, TX (2024, 38 clinicians with data). Median for this group: $24,336. Middle half: $8,978 to $44,341.
A higher Medicare-allowed amount than 65% of clinicians listed under Physician Assistant in Texas (2024, 4,400 clinicians with data). Median for this group: $15,434. Middle half: $6,111 to $35,691.
Paid by Medicare
Close to the middle for clinicians listed under Physician Assistant in Corpus Christi, TX (2024, 38 clinicians with data). Median for this group: $18,027. Middle half: $6,715 to $31,750.
A higher Medicare payment amount than 70% of clinicians listed under Physician Assistant in Texas (2024, 4,400 clinicians with data). Median for this group: $11,276. Middle half: $4,395 to $26,238.
Medicare Part D prescriptions
More Part D prescriptions than 80% of clinicians listed under Physician Assistant in Corpus Christi, TX (2024, 39 clinicians with data). Median for this group: 420. Middle half: 184 to 1,609.
More Part D prescriptions than 90% of clinicians listed under Physician Assistant in Texas (2024, 4,882 clinicians with data). Median for this group: 261. Middle half: 73 to 938.
Part D drug cost
A higher Part D drug cost than 80% of clinicians listed under Physician Assistant in Corpus Christi, TX (2024, 39 clinicians with data). Median for this group: $19,311. Middle half: $1,847 to $135,177.
A higher Part D drug cost than 85% of clinicians listed under Physician Assistant in Texas (2024, 4,882 clinicians with data). Median for this group: $7,999. Middle half: $749 to $103,240.
77 active clinicians are listed under Physician Assistant with a practice address in Corpus Christi, TX (11,008 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Corpus Christi
10.4% of these 77 clinicians have the CMS telehealth indicator.
46.8% of these 77 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 236% from 184 in 2020 to 619 in 2024.
- 2020: 184
- 2021: 251
- 2022: 268
- 2023: 307
- 2024: 619
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Medicare-allowed amount
Medicare-allowed amount increased 151% from $11,799 in 2020 to $29,596 in 2024.
- 2020: $11,799
- 2021: $20,149
- 2022: $21,343
- 2023: $20,387
- 2024: $29,596
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Paid by Medicare
Paid by Medicare increased 170% from $8,472 in 2020 to $22,905 in 2024.
- 2020: $8,472
- 2021: $15,645
- 2022: $15,836
- 2023: $15,811
- 2024: $22,905
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 80% from 1,526 in 2020 to 2,751 in 2024.
- 2020: 1,526
- 2021: 1,582
- 2022: 1,749
- 2023: 1,862
- 2024: 2,751
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30-day fills
30-day fills increased 76% from 3,326 in 2020 to 5,867 in 2024.
- 2020: 3,326
- 2021: 3,465
- 2022: 3,634
- 2023: 4,045
- 2024: 5,867
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Part D drug cost
Part D drug cost increased 670% from $37,240 in 2020 to $286,751 in 2024.
- 2020: $37,240
- 2021: $45,470
- 2022: $86,840
- 2023: $148,323
- 2024: $286,751
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $182.05 in 2021 to $266.05 in 2025.
- 2021: $182.05
- 2022: $668.31
- 2023: $1,499.36
- 2024: $1,330.12
- 2025: $266.05
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): 13 records totaling $266.05.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
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CAPVAXIVE | General | $25.95 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Ozempic | General | $24.34 |
| Phathom Pharmaceuticals, Inc. |
Food and Beverage
Cash or cash equivalent
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VOQUEZNA | General | $24.31 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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FREESTYLE LIBRE 3 | General | $23.73 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Ozempic | General | $22.39 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Wegovy | General | $22.00 |
| Exact Sciences Corporation |
Food and Beverage
In-kind items and services
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Cologuard Collection Kit | General | $20.89 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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NURTEC ODT | General | $20.01 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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SHINGRIX | General | $19.59 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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SHINGRIX | General | $16.71 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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MOUNJARO | General | $15.59 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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MOUNJARO | General | $15.54 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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SHINGRIX | General | $15.00 |
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 |
|---|---|---|---|---|
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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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133 | 89 | $252.15 | $102.94 |
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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 | 62 | $166.39 | $73.00 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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55 | 55 | $289.09 | $105.15 |
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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
|
52 | 46 | $33.00 | $13.39 |
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85025
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
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48 | 44 | $17.00 | $7.61 |
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80061
Blood test, lipids (cholesterol and triglycerides)
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46 | 43 | $28.96 | $13.12 |
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83036
Hemoglobin a1c level
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36 | 34 | $24.17 | $9.52 |
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84443
Blood test, thyroid stimulating hormone (tsh)
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36 | 34 | $43.67 | $16.46 |
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80053
Blood test, comprehensive group of blood chemicals
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35 | 34 | $22.00 | $10.35 |
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J1100
Injection, dexamethasone sodium phosphate, 1 mg
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26 | 12 | $2.85 | $0.11 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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19 | 19 | $38.63 | $11.58 |
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81001
Manual urinalysis test with examination using microscope, automated
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17 | 17 | $7.00 | $3.11 |
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85651
Red blood cell sedimentation rate, to detect inflammation, non-automated
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16 | 16 | $9.00 | $4.18 |
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82306
Vitamin d-3 level
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11 | 11 | $70.91 | $29.01 |
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 |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 194 | 15,570 | $1,265.17 | 67 |
| Omeprazole | Omeprazole | 183 | 12,150 | $2,221.73 | 57 |
| Lisinopril | Lisinopril | 141 | 8,820 | $729.53 | 38 |
| Losartan Potassium | Losartan Potassium | 136 | 9,450 | $1,028.16 | 43 |
| Levothyroxine Sodium | Levothyroxine Sodium | 127 | 8,702 | $1,030.44 | 38 |
| Amlodipine Besylate | Amlodipine Besylate | 126 | 9,823 | $666.45 | 42 |
| Metformin Hcl | Metformin Hcl | 119 | 10,305 | $858.36 | 46 |
| Mounjaro | Tirzepatide | 90 | 3,008 | $111,223.81 | 16 |
| Sertraline Hcl | Sertraline Hcl | 86 | 5,220 | $754.54 | 25 |
| Metoprolol Succinate | Metoprolol Succinate | 85 | 6,590 | $1,369.73 | 27 |
| Hydrochlorothiazide | Hydrochlorothiazide | 75 | 4,590 | $297.25 | 23 |
| Pantoprazole Sodium | Pantoprazole Sodium | 71 | 5,430 | $518.05 | 23 |
| Gabapentin | Gabapentin | 67 | 3,840 | $999.74 | 22 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 67 | 4,490 | $450.46 | 17 |
| Ozempic | Semaglutide | 60 | 1,858 | $56,451.48 | 11 |
| Methylprednisolone | Methylprednisolone | 58 | 348 | $532.58 | 43 |
| Simvastatin | Simvastatin | 55 | 4,930 | $448.98 | 21 |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 53 | 2,190 | $464.96 | 14 |
| Glipizide | Glipizide | 50 | 2,220 | $380.59 | — |
| Ezetimibe | Ezetimibe | 50 | 3,810 | $883.95 | 15 |
| Pravastatin Sodium | Pravastatin Sodium | 42 | 3,360 | $498.11 | 15 |
| Escitalopram Oxalate | Escitalopram Oxalate | 39 | 3,390 | $529.99 | 17 |
| Nitrofurantoin Mono-Macro | Nitrofurantoin Monohyd/M-Cryst | 38 | 222 | $498.93 | 29 |
| Duloxetine Hcl | Duloxetine Hcl | 33 | 2,490 | $726.35 | — |
| Eliquis | Apixaban | 32 | 1,455 | $26,695.47 | — |
(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
Self-certified to NPPES: 2026-03-26NUCC 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
I20040803001003
TX
3072584101
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
Conviva Medical Center Management Of Texas, P.a.
260 Us Hwy 181 N, Floresville, TX 781143136
Phone: 8303938222
Conviva Medical Center Management Of Texas, P.a.
4254 S Alameda St, Corpus Christi, TX 784122469
Phone: 3618534191
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Family Medicine - Adult Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner
Adult-Gerontology Nurse Practitioner
Nurse Practitioner - Family
Nurse Practitioner
Nurse Practitioner
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Family Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 6101 BLUE LAGOON DR STE 200, MIAMI, FL 331263168 (Tel: 3618534191)
Registered at 4254 S ALAMEDA ST, CORPUS CHRISTI, TX 784122469 (Tel: 3618534191)
Registered at 4254 S ALAMEDA ST, CORPUS CHRISTI, TX 784122469 (Tel: 3618534191)
NPI status registered as active in NPPES database
Registered at 3301 S ALAMEDA ST, SUITE 201, CORPUS CHRISTI, TX 784111882 (Tel: 3618572900)
Registered at 3301 S ALAMEDA ST, SUITE 201, CORPUS CHRISTI, TX 784111882 (Tel: 3618572900)
Recorded as TAMMY WALL, PA-C
Physician Assistant (license number reported to NPPES: TX PA03796)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Corpus Christi
- Kevin Marcum, PA-C
- Courtney Phenix, PA
- Sarah Langlois, MMS, PA-C
- Veronica Alaniz, PA-C
- Jazlene Garcia
- Karina Zamudio, PA-C
Mailing Address
6101 Blue Lagoon Dr Ste 200
Miami, FL 331263168
Phone: 3618534191