Mark Tolsma, APN
NPI 1902588700 · Family Nurse Practitioner · Upper Saddle River, NJ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Tolsma, APN is a Family Nurse Practitioner provider in Upper Saddle River, NJ (NPI 1902588700).
Provider details
- NPI number
- 1902588700
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Male
- Sole proprietor
- Yes
- License
- 26NJ14890200 (NJ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
2 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,213 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 208 | $69 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Ionized)80047 | 136 | $13 |
| Red Blood Cell Concentration Measurement85014 | 136 | $2 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 123 | $9 |
| Urinalysis, Manual Test81002 | 99 | $3 |
| Residence Visit for New Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99342 | 97 | $71 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 37 | 34 |
| Doxycycline Hyclate | 35 | 33 |
| Cefuroxime Axetilbrand: Cefuroxime | 29 | 28 |
| Mupirocin | 13 | 12 |
| Cephalexin | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-08-02
- Last updated
- 2023-08-02
- Certified
- 2023-08-02
Frequently asked questions
- What is Mark Tolsma's NPI number?
- Mark Tolsma's National Provider Identifier (NPI) is 1902588700, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Tolsma's specialty?
- Mark Tolsma is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Tolsma located?
- Mark Tolsma's practice location on file with NPPES is 2 Park Way, Upper Saddle River, NJ 07458-2345.
- What is Mark Tolsma's phone number?
- The practice phone number listed in the NPPES registry for Mark Tolsma is (201) 882-7526.
- Does Mark Tolsma accept Medicare?
- Mark Tolsma is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Tolsma's NPI active?
- Yes — Mark Tolsma's NPI (1902588700) is active in the NPPES registry as of the last update on 2023-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.