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Edit this profileAt a glance
- 525 E 68Th St, New York, NY 10065
About Dr. Sullivan
Based in New York, NY, Mark Sullivan, M.D. is listed in the NPI registry under psychiatry. Mark graduated from Columbia University College of Physicians and Surgeons in 2016. According to Medicare claims data, the services billed most often include subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes. NPI 1386098762 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (888) 694-5700
- Email not available
Practice Locations
525 E 68TH ST
New York, NY 10065
Conditions Commonly Evaluated or Treated
Within Psychiatry generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Anxiety, trauma, and obsessive-compulsive
Mood disorders
Psychotic disorders
Substance-related and addictive
Addiction & Substance Use
Cognitive and adjustment
Eating Disorders
Eating, sleep, and somatic
Mood & Depression
Neurodevelopmental and behavioral
Personality and dissociative
Sleep & Wakefulness
Procedures & services
Most searched procedures
- Anxiety and depression treatment
- Cognitive behavioral therapy
- Medication management
- Psychiatric evaluation
- Telepsychiatry
Assessment
Addiction care
Addiction Medicine
Assessments
Brain stimulation
Consultations
Diagnostics
Inpatient care
Interventional psychiatry
Psychotherapy
Sleep Medicine
Specialized care
Therapy
Therapy and care
Procedures Most Often Billed to Medicare
190 services · 12 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
190 | More often than most peers in Psychiatry |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other psychiatrists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 23 related providers in 3 groups
Other psychiatrists in New York 7
Same specialty, same city.
Trained at Columbia University College of Physicians and Surgeons 8
Other providers in the same specialty who trained at the same institution.
Class of 2016 at Columbia University College of Physicians and Surgeons 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Mark Sullivan?
Mark Sullivan is a psychiatrist in New York, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychiatry”.
NPI registry
What is Mark Sullivan's address?
Mark Sullivan is listed at 525 E 68Th St, New York, NY 10065. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Mark Sullivan?
The number on file is (888) 694-5700. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mark Sullivan's NPI number?
Mark Sullivan's National Provider Identifier is 1386098762. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Mark Sullivan train?
Mark Sullivan attended Columbia University College of Physicians and Surgeons, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
How long has Mark Sullivan been practicing?
Mark Sullivan has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
What procedures does Mark Sullivan perform?
According to Medicare billing data, Mark Sullivan the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Mark Sullivan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mark Sullivan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.