Robert Spierer, MD
NPI 1750466975 · Internal Medicine Physician · Monroe Twp, NJ
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Spierer, MD is a Internal Medicine Physician provider in Monroe Twp, NJ (NPI 1750466975).
Provider details
- NPI number
- 1750466975
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MA031123 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
2,239 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 | 633 | $136 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 212 | $121 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 182 | $96 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 181 | $9 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 166 | $111 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 127 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 458 | 128 |
| Levothyroxine Sodium | 314 | 65 |
| Metoprolol Succinate | 212 | 56 |
| Amlodipine Besylate | 198 | 59 |
| Pantoprazole Sodium | 176 | 50 |
| Alprazolam | 170 | 54 |
| Simvastatin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-26
- Last updated
- 2012-05-21
Frequently asked questions
- What is Robert Spierer's NPI number?
- Robert Spierer's National Provider Identifier (NPI) is 1750466975, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Spierer's specialty?
- Robert Spierer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Spierer located?
- Robert Spierer's practice location on file with NPPES is 369 Applegarth Rd, Monroe Twp, NJ 08831-3732.
- What is Robert Spierer's phone number?
- The practice phone number listed in the NPPES registry for Robert Spierer is (609) 395-1900.
- Does Robert Spierer accept Medicare?
- Robert Spierer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Spierer's NPI active?
- Yes — Robert Spierer's NPI (1750466975) is active in the NPPES registry as of the last update on 2012-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.