Gretchen Maria Sinclair , FNP
Nurse Practitioner • San Antonio, TX
4800 Fredericksburg Rd, Suite 127
San Antonio, TX 782293628
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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Gretchen Sinclair is listed in NPPES under Nurse Practitioner.
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NPI assigned on September 28, 2010; this date does not establish years in practice.
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Published CMS data list 387 Original Medicare Part B services in 2017.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017. Published rows only; this is not a quality measure.
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Published Part B service records, 2017:
- 99336 — Established patient assisted living visit: 206 service units.
- 99490 — Chronic care management services: 91 service units.
- 99349 — Residence visit for established patient with moderate level of medical decision making, per day: 67 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2016 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2017). CPT notice
See all 5 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 113 Medicare Part D prescriptions, including refills, in 2018.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2018. Published rows only; this is not a quality measure.
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Published Part D records, 2018:
- Glipizide — 16 prescription fills, including refills.
- Amlodipine Besylate — 14 prescription fills, including refills.
- Lisinopril — 12 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2018. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 9 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 2,714 in 2014 to 113 in 2018.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2014–2018.
Practice Location & Contact Primary Location
4800 Fredericksburg Rd
Suite 127
San Antonio, TX 782293628
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2010
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $36,172 in 2017
The total amount Medicare approved for these services in 2017. 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, 2017.
Paid by Medicare
About $19,889 in 2017
The part of the Medicare-allowed amount that Medicare itself paid in 2017, 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, 2017.
30-day fills
113 standardized 30-day fills in 2018
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
$8,438 in 2018
The total cost of these prescriptions in 2018, 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, 2018.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021–2025.
Years since graduation
16 years (graduated 2010)
CMS Doctors and Clinicians data list 2010 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
2010
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)
Gretchen Sinclair 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 Gretchen Sinclair 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 San Antonio and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Gretchen Sinclair are from 2017.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Gretchen Sinclair are from 2018.
393 active clinicians are listed under Nurse Practitioner with a practice address in San Antonio, TX (4,835 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in San Antonio
9.9% of these 393 clinicians have the CMS telehealth indicator.
51.7% of these 393 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
CMS data for Medicare Part B services are available for 2017 only.
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Medicare-allowed amount
CMS data for Medicare-allowed amount are available for 2017 only.
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Paid by Medicare
CMS data for Medicare payment amount are available for 2017 only.
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 96% from 2,714 in 2014 to 113 in 2018.
- 2014: 2,714
- 2015: 3,852
- 2016: 3,408
- 2017: 1,851
- 2018: 113
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30-day fills
30-day fills decreased 97% from 3,355 in 2014 to 113 in 2018.
- 2014: 3,355
- 2015: 4,541
- 2016: 3,884
- 2017: 2,121
- 2018: 113
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Part D drug cost
Part D drug cost decreased 94% from $138,623 in 2014 to $8,438 in 2018.
- 2014: $138,623
- 2015: $169,433
- 2016: $146,048
- 2017: $85,356
- 2018: $8,438
Sources: CMS Medicare Physician & Other Practitioners (2017), CMS Medicare Part D Prescribers (2018), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016 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; 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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99336
Established patient assisted living visit, typically 40 minutes
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206 | 71 | $203.00 | $111.61 |
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99490
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month
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91 | 58 | $65.00 | $34.34 |
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99349
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes
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67 | 48 | $193.00 | $106.15 |
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99337
Established patient assisted living visit, typically 60 minutes
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12 | 11 | $291.00 | $159.17 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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11 | 11 | $175.00 | $93.92 |
Source: CMS Part B by Provider and Service, 2017; 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 2018.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Glipizide | Glipizide | 16 | 480 | $78.89 | — |
| Amlodipine Besylate | Amlodipine Besylate | 14 | 420 | $64.18 | — |
| Lisinopril | Lisinopril | 12 | 360 | $62.63 | — |
| Gabapentin | Gabapentin | 12 | 360 | $163.91 | — |
| Allopurinol | Allopurinol | 12 | 360 | $153.85 | — |
| Levetiracetam | Levetiracetam | 12 | 360 | $700.36 | — |
| Ranexa | Ranolazine | 12 | 360 | $4,500.72 | — |
| Omega-3 Acid Ethyl Esters | Omega-3 Acid Ethyl Esters | 12 | 360 | $2,595.24 | — |
| Clopidogrel | Clopidogrel Bisulfate | 11 | 330 | $117.95 | — |
Source: CMS Part D by Provider and Drug, 2018; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
NUCC Taxonomy Code: 363LF0000X
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20260608000635
WA
0446432546
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
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 - Gerontology
Advanced Practice Registered Nurse
Nurse Practitioner
Nurse Practitioner
Nurse Practitioner - Adult Health
NURSEPRACTITIONER
Nurse Practitioner
Nurse Practitioner
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated September 28, 2010.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Nurse Practitioners in San Antonio
- Bernadette Brooks, NP
- Kimberly Hubbard, AGACNP-BC
- Ashley Davis
- Vanessa Rodriguez, FNP-C
- Valerie Dennis, AG-ACNP
- Grace Balderas, APRNBC
Mailing Address
Po Box 1239
Troy, MI 480991239
Phone: 2488246600