Dr. Mary Lynn Nielsen
M.D. | Psychiatry | 37+ years Exp
225 S Meramec Ave, Suite 932t, Clayton
Missouri, 63105-3511
314-721-7550 314-863-2114
Maps & DirectionsDr. Mary Lynn Nielsen is a Clayton, Missouri based psychiatrist with 37 years of experience in Psychiatry. She completed her graduation from University Of Illinois College Of Med (chi/peor/rock/chm-urb) in 1988. She accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Dr. Mary Lynn Nielsen is MDR7P10 for Psychiatry in Missouri. Her current practice location is 225 S Meramec Ave, Suite 932t, Clayton. Patients can reach her at 314-721-7550 or can fax her at 314-863-2114. Dr. Mary Lynn Nielsen is M.D. in Psychiatry and her NPI number (Unique professional ID assigned by NPPES) is 1972645240.
Dr. Mary Lynn Nielsen specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
Complete Profile:
Dr. Mary Lynn Nielsen speciality, credentials, practice address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointment.
| Name: | Dr. Mary Lynn Nielsen |
| Specialization: | Psychiatry |
| Gender: | Female |
| Credentials: | M.D. |
| Experience: | 37+ years |
| Medical School Attended: | University Of Illinois College Of Med (chi/peor/rock/chm-urb) |
| Graduation Year: | 1988 |
| Accepts Medicare Assignment: | Yes |
| Practice Address: | 225 S Meramec Ave, Suite 932t, Clayton,
Missouri, 63105-3511 |
| Phone: | 314-721-7550 |
| Fax: | 314-863-2114 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| PAC ID: | 9234304072 |
| Enrollment ID: | I20111207000043 |
| NPI Number: | 1972645240 |
| NPI Enumeration Date: | 13 Feb, 2007 |
| NPI Last Update On: | 08 Jul, 2007 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Mary Lynn Nielsen are as mentioned below.
| License Number | Specialization | State | Status | |
| MDR7P10 | Psychiatry | Missouri | Primary | |
Other Medical Identifiers:
Other legacy medical identifiers associated with Dr. Mary Lynn Nielsen such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
| Identifier | Type | State | Issuer |
| F31343 | Medicaid | Missouri | |
| 11589908 | Other | | CAQH |
| 111963 | Other | Missouri | BLUE CROSS |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Dr. Mary Lynn Nielsen
225 S Meramec Ave, Suite 932t
Clayton, Missouri |
| Zip: | 63105-3511 |
| Phone Number: | 314-721-7550 |
| Fax Number: | 314-863-2114 |
Patients can reach Dr. Mary Lynn Nielsen at
225 S Meramec Ave, Suite 932t, Clayton, Missouri or can
call to book an appointment on 314-721-7550.
Comments/ Reviews:
Read all the reviews posted for Dr. Mary Lynn Nielsen below. You may also share your own experience with Dr. Mary Lynn Nielsen. Your feedback can help others make better decisions.
**
Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.