NPPES file of Aug 9, 2026

Petra Grinnell, APRN, FNP-BC

Family Nurse Practitioner · San Antonio, TX

Petra Grinnell, APRN, FNP-BC is a family nurse practitioner with a practice address in San Antonio, Texas, and NPI 1386959120, issued on Aug 17, 2010. Check the license (Texas 550234, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1386959120
Name
Petra Grinnell
Credential
APRN, FNP-BC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
550234 TX
Self-reported in NPPES; status is on the state search
Practice location
1303 Mccullough Ave, San Antonio, TX 78212
Phone
(210) 223-5483
Enumerated
Aug 17, 2010
Record last updated
Dec 27, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(210) 223-5492
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 21,242 in Texas → Look up another NPI →

Also registered at 1303 Mccullough Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. John Anes, M DInternal Medicine Physician1811981350
  2. Walter Bain, MDOtolaryngology Physician1194890863
  3. Ana Ballester-Fiallo, MDRheumatology Physician1811007412
  4. Jeannie Baquero, M.D.Endocrinology, Diabetes & Metabolism Physician1255301149
  5. Richard Becker, M.D.Endocrinology, Diabetes & Metabolism Physician1306985676
  6. Neera Bhatia, MDObstetrics & Gynecology Physician1760428619

Verify Petra Grinnell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license 550234    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Texas license search

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82% more Medicare Part D claims than the average family nurse practitioner in 2024

2,369 Medicare Part D claims for 551 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims.

  1. Petra Grinnell2,369
  2. Specialty average1,305

Most prescribed

  1. Levothyroxine Sodium1,115 claims
  2. Synthroid232 claims
  3. Alendronate Sodium95 claims
  4. Atorvastatin Calcium78 claims
  5. Ozempic57 claims
  6. Lantus Solostar53 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $1,433.52

67 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Petra Grinnell$1,433.52
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Petra Grinnell among 21,242 family nurse practitioner records in Texas

Petra Grinnell, APRN, FNP-BC is one of 21,242 family nurse practitioner records with a practice address in Texas. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 12% of them.

  • NPI issued2010 · 12% of these records are older, 86% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2011 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,362 family nurse practitioner records list a practice address in San Antonio

They are 1,362 of the 37,749 NPPES records with a practice address in San Antonio, and 21,242 family nurse practitioner records in Texas.

All 21,242 in Texas → Every provider in San Antonio → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Julian Alvarez, FNPSan Antonio, TX 782121407242118
  2. Javier CarrilloSan Antonio, TX 782121427417468
  3. Nicholas Davila, FNP-CSan Antonio, TX 782121629324678
  4. John Meyer, FNP-CSan Antonio, TX 782121811923840
  5. Angelica Pentecost, FNP-CSan Antonio, TX 782121699173435
  6. Rosemary Rivas, NPSan Antonio, TX 782121821044751
  7. Sandra Ryan, RNSan Antonio, TX 782121558903583
  8. Leah SaldanaSan Antonio, TX 782121144737883

Common questions

What is Petra Grinnell, APRN, FNP-BC's NPI number?

Petra Grinnell, APRN, FNP-BC's National Provider Identifier (NPI) is 1386959120, issued on Aug 17, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Petra Grinnell, APRN, FNP-BC located?

The NPPES record lists a practice address at 1303 Mccullough Ave, San Antonio, TX, 78212. Phone: (210) 223-5483. Providers update this record themselves, so call before visiting.

How can I verify Petra Grinnell, APRN, FNP-BC's license?

NPPES lists Texas license number 550234, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Petra Grinnell, APRN, FNP-BC prescribe under Medicare Part D?

In 2024, Petra Grinnell, APRN, FNP-BC had 2,369 Medicare Part D claims for 551 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.