NPPES file of Aug 9, 2026

Mary Knust Graichen, NP

Family Nurse Practitioner · Boston, MA

Mary Knust Graichen, NP is a family nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1487750675, issued on Sep 15, 2006. Check the license (Massachusetts 159259, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1487750675
Name
Mary Knust Graichen
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
159259 MA
Self-reported in NPPES; status is on the state search
Practice location
75 Francis St, Boston, MA 02115
Phone
(617) 732-8111
Enumerated
Sep 15, 2006
Record last updated
Aug 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(617) 264-6344
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 4,724 in Massachusetts → Look up another NPI →

Also registered at 75 Francis St

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

  1. Amin AalipourStudent in an Organized Health Care Education/Training Program1902483258
  2. Emily Aaronson, M.D.Emergency Medicine Physician1962791558
  3. Sarah Abbett, M.D.Anesthesiology Physician1902097736
  4. Christine Abbott, NPAdult Health Nurse Practitioner1851471940
  5. Muhammad Abd-El-Barr, M.D., PH.D.Neurological Surgery Physician1891922688
  6. Duaa AbdelhameidStudent in an Organized Health Care Education/Training Program1851852867

Verify Mary Knust Graichen 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 159259    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Mary Knust Graichen among 4,724 family nurse practitioner records in Massachusetts

Mary Knust Graichen, NP is one of 4,724 family nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 91% newer
  • In a Medicare fileNo · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2007 · 42% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

938 family nurse practitioner records list a practice address in Boston

They are 938 of the 41,865 NPPES records with a practice address in Boston, and 4,724 family nurse practitioner records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 4,724 in Massachusetts → Every provider in Boston → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Stephanie Ahmed, N.P.Boston, MA 021151952493447
  2. Melissa Cochran, RN, MS, NPBoston, MA 021151578518858
  3. Tracey Costantino, NPBoston, MA 021151295779890
  4. Virginia Dalton, APRN BCBoston, MA 021151598703092
  5. Marina Donahue, N.P.Boston, MA 021151922161801
  6. Sherry Iuliano, NPBoston, MA 021151013065135
  7. Anne Kelly, NPBoston, MA 021151558303412
  8. Theresa Kennedy, FNPBoston, MA 021151316016892

Common questions

What is Mary Knust Graichen, NP's NPI number?

Mary Knust Graichen, NP's National Provider Identifier (NPI) is 1487750675, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mary Knust Graichen, NP located?

The NPPES record lists a practice address at 75 Francis St, Boston, MA, 02115. Phone: (617) 732-8111. Providers update this record themselves, so call before visiting.

How can I verify Mary Knust Graichen, NP's license?

NPPES lists Massachusetts license number 159259, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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. 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.