Nancy Greces, MD
NPI 1558384644 · Internal Medicine Physician · Albuquerque, NM
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Greces, MD is a Internal Medicine Physician provider in Albuquerque, NM (NPI 1558384644).
Provider details
- NPI number
- 1558384644
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 9565 (NM)
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
181 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 High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 98 | $177 |
| Prolonged Home Or Residence Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By the Physician Or QualifG0318 | 42 | $30 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 41 | $121 |
Typical Medicare-allowed amounts for these services range $30–$177 (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 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 117 | 22 |
| Levothyroxine Sodium | 97 | 19 |
| Atorvastatin Calcium | 85 | 14 |
| Amlodipine Besylate | 79 | 14 |
| Pantoprazole Sodium | 59 | 11 |
| Metoprolol Succinate | 54 | — |
| Rivaroxaban |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-26
- Last updated
- 2011-08-26
Frequently asked questions
- What is Nancy Greces's NPI number?
- Nancy Greces's National Provider Identifier (NPI) is 1558384644, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Greces's specialty?
- Nancy Greces is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nancy Greces located?
- Nancy Greces's practice location on file with NPPES is 4316 Carlisle Blvd Ne, Albuquerque, NM 87107-4829.
- What is Nancy Greces's phone number?
- The practice phone number listed in the NPPES registry for Nancy Greces is (505) 888-1075.
- Does Nancy Greces accept Medicare?
- Nancy Greces is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Greces's NPI active?
- Yes — Nancy Greces's NPI (1558384644) is active in the NPPES registry as of the last update on 2011-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.