NPPES file of Aug 9, 2026

Maria Kristina Grotz, CRNP

Adult Psychiatric/Mental Health Registered Nurse · Orleans, MA

Maria Kristina Grotz, CRNP is an adult psychiatric/mental health registered nurse with a practice address in Orleans, Massachusetts, and NPI 1972634806, issued on Mar 9, 2007. Check the license (Massachusetts RN259320, as entered in NPPES) with the Massachusetts 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
1972634806
Name
Maria Kristina Grotz
Credential
CRNP
Primary taxonomy
Adult Psychiatric/Mental Health Registered Nurse 163WP0809X
License number
RN259320 MA
Self-reported in NPPES; status is on the state search
Practice location
8 Nells Way, Orleans, MA 02653
Phone
(917) 647-7779
Enumerated
Mar 9, 2007
Record last updated
Oct 8, 2025
Medicare enrollment
Enrolled (PECOS I20120801000181); accepts Medicare assignment
Medical or professional school
University Of Missouri, Columbia School Of Medicine, 2001
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Maria Kristina Grotz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN259320
    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 Massachusetts license search

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2.2 times the Medicare Part D claims of the average adult psychiatric/mental health registered nurse in 2024

2,462 Medicare Part D claims for 82 beneficiaries, against an average of 1,135 among the 111 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.

  1. Maria Grotz2,462
  2. Specialty average1,135

Most prescribed

  1. Divalproex Sodium257 claims
  2. Risperidone231 claims
  3. Buspirone Hcl164 claims
  4. Trazodone Hcl159 claims
  5. Sertraline Hcl131 claims
  6. Escitalopram Oxalate128 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: $1,552.17

22 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 91 providers of this specialty with any payment received $1,737.69 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Maria Grotz$1,552.17
  2. Specialty average$1,737.69

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

Maria Kristina Grotz among 180 adult psychiatric/mental health registered nurse records in Massachusetts

Maria Kristina Grotz, CRNP is one of 180 adult psychiatric/mental health registered nurse records with a practice address in Massachusetts. 24% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 31% of them.

  • NPI issued2007 · 31% of these records are older, 53% newer
  • In a Medicare fileYes · 24% of these records are
  • In the CMS Doctors and Clinicians fileYes · 17% of these records are
  • Graduated2001 · median 1996 among the 31 with a school on file
  • Record last updated2025 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163WP0809X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Psychiatric/Mental Health Registered Nurse providers in Massachusetts

There are 180 adult psychiatric/mental health registered nurse records in Massachusetts.

The 8 adult psychiatric/mental health registered nurse records with the nearest ZIP codes

  1. Alison Dwyer, APRNProvincetown, MA 026571972624328
  2. Amanda Reilly, APRNBrewster, MA 026311417231895
  3. Mary Meleski, R.N, M.SHyannis, MA 026011417004490
  4. Kristie Simmons, NPEast Freetown, MA 027171881517332
  5. June HorowitzMattapoisett, MA 027391811608466
  6. Samantha Smith, RNOak Bluffs, MA 025571316817398
  7. Colette Mannion, RNNorton, MA 027661710363676
  8. Louise Stebbins, RNCS; APRNFalmouth, MA 025401689604753

Common questions

What is Maria Kristina Grotz, CRNP's NPI number?

Maria Kristina Grotz, CRNP's National Provider Identifier (NPI) is 1972634806, issued on Mar 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Maria Kristina Grotz, CRNP located?

The NPPES record lists a practice address at 8 Nells Way, Orleans, MA, 02653. Phone: (917) 647-7779. Providers update this record themselves, so call before visiting.

How can I verify Maria Kristina Grotz, CRNP's license?

NPPES lists Massachusetts license number RN259320, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Maria Kristina Grotz, CRNP prescribe under Medicare Part D?

In 2024, Maria Kristina Grotz, CRNP had 2,462 Medicare Part D claims for 82 beneficiaries; the average among adult psychiatric/mental health registered nurse prescribers was 1,135. 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.

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.