Grace Eng, MD
NPI 1871552679 · Endocrinology, Diabetes & Metabolism Physician · Emeryville, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Eng, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Emeryville, CA (NPI 1871552679).
Provider details
- NPI number
- 1871552679
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A86467 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,546 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 572 | $19 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 492 | $140 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 183 | $199 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 141 | $39 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 49 | $18 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 353 | 90 |
| Alendronate Sodium | 190 | 56 |
| Metformin Hclbrand: Metformin Hcl Er | 130 | 49 |
| Semaglutidebrand: Ozempic | 109 | 31 |
| Atorvastatin Calcium | 103 | 32 |
| Teriparatide | 82 | 15 |
| Levothyroxine Sodium |
Practice location
Mailing address
Additional practice locations (1)
- 300 Pasteur DrPalo Alto, CA 94304-2203Phone: (650) 723-4000
Registry dates
- Enumerated
- 2006-03-21
- Last updated
- 2024-04-29
- Certified
- 2024-04-29
Frequently asked questions
- What is Grace Eng's NPI number?
- Grace Eng's National Provider Identifier (NPI) is 1871552679, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Eng's specialty?
- Grace Eng is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Eng located?
- Grace Eng's practice location on file with NPPES is 5800 Hollis St, Emeryville, CA 94608-2016.
- What is Grace Eng's phone number?
- The practice phone number listed in the NPPES registry for Grace Eng is (510) 806-2100.
- Does Grace Eng accept Medicare?
- Grace Eng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Eng's NPI active?
- Yes — Grace Eng's NPI (1871552679) is active in the NPPES registry as of the last update on 2024-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.