Spencer Martin, CRNP
NPI 1649993684 · Adult Health Nurse Practitioner · Annapolis, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Spencer Martin, CRNP is a Adult Health Nurse Practitioner provider in Annapolis, MD (NPI 1649993684).
Provider details
- NPI number
- 1649993684
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- No
- License
- R220752 (MD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Allopathic & Osteopathic Physicians
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
3 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
540 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 293 | $102 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 169 | $99 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 45 | $68 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 20 | $85 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 13 | $117 |
Typical Medicare-allowed amounts for these services range $68–$117 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 42 | 42 |
| Oxycodone Hcl | 35 | 35 |
| Prednisone | 23 | 22 |
| Furosemide | 22 | 22 |
| Methocarbamol | 15 | 15 |
| Metoprolol Succinate | 13 | 13 |
| Famotidine | 13 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-09-23
- Last updated
- 2022-11-08
- Certified
- 2022-11-08
Frequently asked questions
- What is Spencer Martin's NPI number?
- Spencer Martin's National Provider Identifier (NPI) is 1649993684, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Spencer Martin's specialty?
- Spencer Martin is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Spencer Martin located?
- Spencer Martin's practice location on file with NPPES is 2001 Medical Pkwy, Annapolis, MD 21401-3773.
- What is Spencer Martin's phone number?
- The practice phone number listed in the NPPES registry for Spencer Martin is (410) 507-8279.
- Does Spencer Martin accept Medicare?
- Spencer Martin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Spencer Martin's NPI active?
- Yes — Spencer Martin's NPI (1649993684) is active in the NPPES registry as of the last update on 2022-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.