Mary F. Haynos, CRNP
Adult Health Nurse Practitioner · Germantown, MD
Mary F. Haynos, CRNP is an adult health nurse practitioner with a practice address in Germantown, Maryland, and NPI 1154370377, issued on May 6, 2006. Check the license (Maryland R113971, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary F. Haynos
- Credential
- CRNP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- R113971 MD
Self-reported in NPPES; status is on the state search - Practice location
- 19701 Executive Park Cir, Germantown, MD 20874
- Phone
- (301) 946-6623
- Enumerated
- May 6, 2006
- Record last updated
- Feb 5, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (301) 946-1107
- Medicaid ID
- 408582500 MD
- Medicare enrollment
- Enrolled (PECOS I20050928000680); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 902 in Maryland → Look up another NPI →
Also registered at 19701 Executive Park Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pragna Patel, M.D.Internal Medicine Physician1588980650
Verify Mary F. Haynos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R113971Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
562 Medicare Part D claims for 128 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate45 claims
- Atorvastatin Calcium41 claims
- Levothyroxine Sodium27 claims
- Jardiance18 claims
- Lisinopril18 claims
- Metformin Hcl17 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.
Bills Medicare through one group practice
- Advanced Medical Care LLCSilver Spring, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary F. Haynos among 902 adult health nurse practitioner records in Maryland
Mary F. Haynos, CRNP is one of 902 adult health nurse practitioner records with a practice address in Maryland. 63% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 79% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2003 · median 2014 among the 386 with a school on file
- Record last updated2018 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Health Nurse Practitioner providers in Maryland
There are 902 adult health nurse practitioner records in Maryland.
All 902 in Maryland → Every provider in Germantown → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Maria AgudaGermantown, MD 208741871999235
- Dilys Fan, MSN, AGNP-CGermantown, MD 208741033681440
- Angela Novas, CRNPGermantown, MD 208741841680915
- Tammy Cooper, APN-CGermantown, MD 208761720109846
- Marina Savoy, NPGermantown, MD 208761205907151
- Cinderella Samandi, CRNPClarksburg, MD 208711013549823
- Megan Cullen, CRNPNorth Potomac, MD 208781962164376
- Laureen Harkins, CRNPGaithersburg, MD 208781205375524
Common questions
What is Mary F. Haynos, CRNP's NPI number?
Mary F. Haynos, CRNP's National Provider Identifier (NPI) is 1154370377, issued on May 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary F. Haynos, CRNP located?
The NPPES record lists a practice address at 19701 Executive Park Cir, Germantown, MD, 20874. Phone: (301) 946-6623. Providers update this record themselves, so call before visiting.
How can I verify Mary F. Haynos, CRNP's license?
NPPES lists Maryland license number R113971, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Mary F. Haynos, CRNP prescribe under Medicare Part D?
In 2024, Mary F. Haynos, CRNP had 562 Medicare Part D claims for 128 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.