Physician Profile
Marissa C. Theofanides, MD
Unclaimed ProfileAbout Dr. Theofanides
Based in West Nyack, NY, Marissa C. Theofanides, MD is listed in the NPI registry under urology. Marissa graduated from Js Weill Medical College, Cornell University in 2008. According to Medicare claims data, Marissa cared for 80 Medicare patients across 89 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (845) 703-6999
- Email not available
Practice Locations
2 CENTEROCK RD
West Nyack, NY 10994
Conditions Commonly Evaluated or Treated
Within Urology 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
- Erectile dysfunction
- Kidney stones
- Overactive bladder
- Prostate cancer
- Urinary incontinence in women
- UTI
Bladder and urethra
- Bladder cancer
- Interstitial cystitis and bladder pain syndrome
- Urethral stricture
Kidney and ureter
- Kidney cancer
Male reproductive and sexual health
- Hydrocele
- Male infertility
- Peyronie's disease
- Testicular and scrotal pain
- Testicular cancer
- Testicular torsion
- Testosterone deficiency
- Varicocele
Prostate
- Elevated PSA
- Enlarged prostate
- Prostatitis
Urinary symptoms and infection
- Blood in the urine
- Kidney infection
- Painful urination
- Recurrent urinary tract infections
- Urinary retention
Bladder & Urination
- Overactive Bladder and Leakage
Kidney health
- Kidney Cyst
Men's health
- Chronic Pelvic Pain in Men
Urinary symptoms
- Waking Up to Pee
Procedures & services
Most searched procedures
- Circumcision
- Cystoscopy
- Kidney stone removal
- Prostatectomy
- Vasectomy
Office diagnosis
- MRI-targeted fusion prostate biopsy
- Prostate biopsy
Bladder procedures
- Artificial Urinary Sphincter Implant
- Bladder Botox Injection
- Bladder instillation therapy
- Radical bladder removal
- Sacral neuromodulation
- Sling surgery for stress incontinence
- Transurethral resection of bladder tumor
Diagnostic imaging
- Prostate Ultrasound
Kidney & ureter procedures
- Ureteral Stent Removal
Kidney and ureter surgery
- Partial kidney removal
- Radical kidney removal
Male reproductive
- Hydrocele repair
- Penile implant surgery
- Surgical correction of penile curvature
- Testicle removal
- Varicocele repair
Prostate
- GreenLight Laser Prostate Surgery
Prostate procedures
- HoLEP Laser Prostate Surgery
- Prostatic urethral lift
- Rezum Water Vapor Therapy
- Transurethral resection of the prostate
Stone procedures
- Ureteral stent placement
Procedures Most Often Billed to Medicare
89 services · 80 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
34 | Less often than most peers in Urology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
24 | Less often than most peers in Urology |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
17 | Less often than most peers in Urology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
14 | Less often than most peers in Urology |
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 urologists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
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 urologists in West Nyack 7
Same specialty, same city.
Trained at Js Weill Medical College, Cornell University 8
Other providers in the same specialty who trained at the same institution.
Class of 2008 at Js Weill Medical College, Cornell University 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. Theofanides?
Dr. Theofanides is an urologist in West Nyack, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Urology”.
NPI registry
What is Dr. Theofanides's address?
Dr. Theofanides is listed at 2 Centerock Rd, West Nyack, NY 10994. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Theofanides?
The number on file is (845) 703-6999. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Theofanides's NPI number?
Dr. Theofanides's National Provider Identifier is 1306119920. 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 Dr. Theofanides train?
Dr. Theofanides attended Js Weill Medical College, Cornell University, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Theofanides been practicing?
Dr. Theofanides has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Theofanides perform?
According to Medicare billing data, Dr. Theofanides 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 Dr. Theofanides confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Theofanides. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.