Mark Demasi, DO
NPI 1922080340 · Obstetrics & Gynecology Physician · Somers Point, NJ
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Demasi, DO is a Obstetrics & Gynecology Physician provider in Somers Point, NJ (NPI 1922080340).
Provider details
- NPI number
- 1922080340
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 25MB05372900 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
759 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 719 | $94 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 40 | $132 |
Typical Medicare-allowed amounts for these services range $94–$132 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tizanidine Hcl | 446 | 175 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 429 | 140 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 428 | 138 |
| Gabapentin | 336 | 139 |
| Meloxicam | 334 | 129 |
| Tramadol Hcl | 190 | 74 |
| Pregabalin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$237 across 15 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-20
- Last updated
- 2025-02-11
- Certified
- 2025-02-06
Frequently asked questions
- What is Mark Demasi's NPI number?
- Mark Demasi's National Provider Identifier (NPI) is 1922080340, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Demasi's specialty?
- Mark Demasi is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Demasi located?
- Mark Demasi's practice location on file with NPPES is 501 Bay Ave Ste 202, Somers Point, NJ 08244-2554.
- What is Mark Demasi's phone number?
- The practice phone number listed in the NPPES registry for Mark Demasi is (609) 904-2173.
- Does Mark Demasi accept Medicare?
- Mark Demasi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Demasi's NPI active?
- Yes — Mark Demasi's NPI (1922080340) is active in the NPPES registry as of the last update on 2025-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.