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- 4 Millstone Dr, Southampton, NY 11968
About Mary Schaefer
Mary E. Schaefer, ANP-C is a nurse practitioner — adult health based in Southampton, NY. According to Medicare claims data, Mary cared for 421 Medicare patients across 2,064 services. The services billed most often include subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes, subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more, and advance care planning, first 30 minutes. The provider's National Provider Identifier (NPI) is 1558649244.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (631) 374-0534
- Email not available
Practice Locations
4 MILLSTONE DR
Southampton, NY 11968
Conditions and Services Within This Provider's Scope
Within Nurse Practitioner - Adult Health 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
- Common cold
- Diabetes
- Flu
- High blood pressure
- Sinus infection
- UTI
Allergies
Allergy & skin
- Hives
- Poison Ivy
Blood disorders
Bone health
Brain & nerves
Digestive
- Acute diarrhea
- Hemorrhoids
- Viral gastroenteritis
Digestive health
- Acid reflux
- Constipation
- IBS
Eye issues
Foot & ankle
General health
Heart
- Heart palpitations
Heart & circulation
Hormones & endocrine
Infections
Joints & bones
Men's health
- Enlarged prostate
- Erectile dysfunction
- Testosterone deficiency
Mental health
Pain
Pain & musculoskeletal
- Back pain
- Gout
- Osteoarthritis
Respiratory
Sexual health
- Bacterial vaginosis
- Sexually transmitted infections
Skin
- Acne
- Precancerous sun spot
Skin & hair
Skin & nails
Skin issues
Sleep
Urinary
- Kidney stones
Weight management
Women's health
Procedures & services
Most searched procedures
- Annual physical exam
- Routine blood work
- Sick visit
- Sports physical
- Suture removal
- Vaccination
Acute care
- Tick bite evaluation and treatment
Allergy & immunology
- Allergy testing
Care coordination
- Specialist referral consult
Clinical exams
- Pre-surgery clearance
Diabetes care
- Hemoglobin A1c Test
Diagnostics
- In-office urine test
- Rapid flu test
Digestive
- H. Pylori Breath Test
Ear care
- Earwax removal
Endocrine
- Thyroid checkup
Heart & circulation
- EKG
Heart health
- Blood Pressure Check
- Cholesterol and Lipid Blood Panel
- Heart monitor
Injections
Medication management
- Prescription Refill Visit
Men's health
- Prostate exam
- Testosterone replacement therapy consult
Mental health
- Depression screening
Minor procedures
- Incision and drainage of an abscess
- Ingrown toenail removal
- Skin biopsy
- Skin Tag Removal
- Superficial foreign-body removal
- Wart Removal
- Wound care and dressing
Occupational health
- DOT Physical
Pain & wellness
- Medical Cannabis Evaluation
Pain management
Preventive care
- Colon cancer screening consult
- Medicare wellness visit
- Smoking cessation counseling
- Travel health clinic and vaccines
Respiratory care
- Breathing Treatment
- Spirometry
Screenings & tests
- Rapid COVID-19 test
- Rapid strep testing
- TB Skin Test
- Urine drug screening
Senior care
- Cognitive and memory screening
- Fall risk assessment
Sexual health
- PrEP consultation
- STI and STD Screening
Skin care
- Cryotherapy for skin spots
- Mole Check
Sleep
- At-home sleep test
Telehealth
- Virtual doctor visit
Urgent care
- Minor laceration repair
- Splinting of minor injuries
Weight management
- Weight loss medication consult
Women's health
- Birth control counseling
- Hormone replacement therapy consult
- Pap smear
Procedures Most Often Billed to Medicare
2,064 services · 421 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
1,662 | More than most peers in Nurse Practitioner, Adult |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
280 | More often than most peers in Nurse Practitioner, Adult |
| Advance care planning, first 30 minutes | Office visit | 99497 |
59 | More often than most peers in Nurse Practitioner, Adult |
| Nursing facility discharge management, more than 30 minutes | Office visit | 99316 |
45 | As often as other peers in Nurse Practitioner, Adult |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes | Office visit | 99307 |
18 | Less often than most peers in Nurse Practitioner, Adult |
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.
Common questions
What is Mary E. Schaefer's specialty?
Mary E. Schaefer is a nurse practitioner in Southampton, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nurse Practitioner — Adult Health”.
NPI registry
Where can I find Mary E. Schaefer?
Mary E. Schaefer is listed at 4 Millstone Dr, Southampton, NY 11968. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Mary E. Schaefer?
The number on file is (631) 374-0534. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mary E. Schaefer's NPI number?
Mary E. Schaefer's National Provider Identifier is 1558649244. 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
How long has Mary E. Schaefer been practicing?
Mary E. Schaefer has 15+ years experience. Registered with an NPI since 2011. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Mary E. Schaefer known for?
According to Medicare billing data, Mary E. Schaefer 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 Mary E. Schaefer confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mary E. Schaefer. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.