NPPES file of Aug 9, 2026

Dayna Granston, RN, RXN, CNS, APRN

Adult Psychiatric/Mental Health Clinical Nurse Specialist · Boulder, CO

Dayna Granston, RN, RXN, CNS, APRN is an adult psychiatric/mental health clinical nurse specialist with a practice address in Boulder, Colorado, and NPI 1639199235, issued on Jul 19, 2006. Check the license (Colorado RXN-0001430-CNS, as entered in NPPES) with the Colorado 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
1639199235
Name
Dayna Granston
Credential
RN, RXN, CNS, APRN
Primary taxonomy
Adult Psychiatric/Mental Health Clinical Nurse Specialist 364SP0809X
License numbers
RXN-0001430-CNS CO
91024 CO
Self-reported in NPPES; status is on the state search
Practice location
1634 Walnut St Ste 201, Boulder, CO 80302
Phone
(303) 818-8263
Enumerated
Jul 19, 2006
Record last updated
Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(844) 272-1680
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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Also registered at 1634 Walnut St Ste 201

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

  1. Ann Norris, MSW, LCSWMental Health Counselor1427196690
  2. Jed Shapiro, MDPsychiatry Physician1396765558

Verify Dayna Granston in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Colorado board licenses this profession
    Search for license RXN-0001430-CNS
    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 Colorado license search

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93% fewer Medicare Part D claims than the average adult psychiatric/mental health clinical nurse specialist in 2024

79 Medicare Part D claims, against an average of 1,167 among the 347 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Dayna Granston79
  2. Specialty average1,167

Most prescribed

  1. Lorazepam14 claims
  2. Divalproex Sodium Er12 claims
  3. Gabapentin12 claims
  4. Trazodone Hcl11 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.

Dayna Granston among 40 adult psychiatric/mental health clinical nurse specialist records in Colorado

Dayna Granston, RN, RXN, CNS, APRN is one of 40 adult psychiatric/mental health clinical nurse specialist records with a practice address in Colorado. 43% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 0% of them.

  • NPI issued2006 · 0% of these records are older, 55% newer
  • In a Medicare fileYes · 43% of these records are
  • In the CMS Doctors and Clinicians fileNo · 18% of these records are
  • Record last updated2018 · 70% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 364SP0809X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Psychiatric/Mental Health Clinical Nurse Specialist providers in Colorado

There are 40 adult psychiatric/mental health clinical nurse specialist records in Colorado.

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

  1. Mary Ann Bolkovatz, CNSBoulder, CO 803051770509556
  2. Nicolette Gagliano, C.N.S.Denver, CO 802311306962220
  3. Donna Strickland, MS, RN, PMHCNS-BCDenver, CO 802301013210038
  4. Betty Baker, PMHCNS-BC, APN-CNSLakewood, CO 802281669161246
  5. Carolyn Dacres, RXS, CNSDenver, CO 802221144300781
  6. Cameron-K Garrett, RXN, CNSDenver, CO 802211134274939
  7. Mary Klatt, DNP, RXN, PMHCNS-BCDenver, CO 802201477600690
  8. Judy Murray, RN, CNSDenver, CO 802101548336399

Common questions

What is Dayna Granston, RN, RXN, CNS, APRN's NPI number?

Dayna Granston, RN, RXN, CNS, APRN's National Provider Identifier (NPI) is 1639199235, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dayna Granston, RN, RXN, CNS, APRN located?

The NPPES record lists a practice address at 1634 Walnut St Ste 201, Boulder, CO, 80302. Phone: (303) 818-8263. Providers update this record themselves, so call before visiting.

How can I verify Dayna Granston, RN, RXN, CNS, APRN's license?

NPPES lists Colorado license number RXN-0001430-CNS, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.

How much does Dayna Granston, RN, RXN, CNS, APRN prescribe under Medicare Part D?

In 2024, Dayna Granston, RN, RXN, CNS, APRN had 79 Medicare Part D claims; the average among adult psychiatric/mental health clinical nurse specialist prescribers was 1,167. 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.