Nicholas Stienstra, M.D.
NPI 1033505581 · Rheumatology Physician · Monterey, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Stienstra, M.D. is a Rheumatology Physician provider in Monterey, CA (NPI 1033505581).
Provider details
- NPI number
- 1033505581
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A170493 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 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
789 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 518 | $136 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 78 | $96 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 64 | $189 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 46 | $177 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 45 | $232 |
| Aspiration And/Or Injection of Fluid From Large Joint |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 271 | 71 |
| Prednisone | 257 | 92 |
| Methotrexate Sodiumbrand: Methotrexate | 237 | 65 |
| Gabapentin | 102 | 28 |
| Allopurinol | 61 | 18 |
| Meloxicam | 60 | 21 |
| Leflunomide | 58 | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-11
- Last updated
- 2021-04-09
- Certified
- 2021-04-09
Frequently asked questions
- What is Nicholas Stienstra's NPI number?
- Nicholas Stienstra's National Provider Identifier (NPI) is 1033505581, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Stienstra's specialty?
- Nicholas Stienstra is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Nicholas Stienstra located?
- Nicholas Stienstra's practice location on file with NPPES is 2 Upper Ragsdale Dr Bldg a, Monterey, CA 93940-5736.
- What is Nicholas Stienstra's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Stienstra is (831) 333-3040.
- Does Nicholas Stienstra accept Medicare?
- Nicholas Stienstra is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Stienstra's NPI active?
- Yes — Nicholas Stienstra's NPI (1033505581) is active in the NPPES registry as of the last update on 2021-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.