Amy Gruber, M.D.
NPI 1578588851 · Family Medicine Physician · Chatham, NJ
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Amy Gruber, M.D. is a Family Medicine Physician provider in Chatham, NJ (NPI 1578588851).
Provider details
- NPI number
- 1578588851
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 25MA05363000 (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
252 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 71 | $90 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 61 | $105 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 52 | $65 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 19 | $9 |
| Administration of Pneumococcal VaccineG0009 | 19 | $36 |
| Administration of Influenza Virus VaccineG0008 | 17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 149 | 64 |
| Levothyroxine Sodium | 93 | 33 |
| Lisinopril | 74 | 28 |
| Rosuvastatin Calcium | 63 | 22 |
| Hydrochlorothiazide | 58 | 20 |
| Amlodipine Besylate | 55 | 27 |
| Simvastatin | 46 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-13
- Last updated
- 2007-07-08
Frequently asked questions
- What is Amy Gruber's NPI number?
- Amy Gruber's National Provider Identifier (NPI) is 1578588851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Amy Gruber's specialty?
- Amy Gruber is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Amy Gruber located?
- Amy Gruber's practice location on file with NPPES is 492 Main St, Chatham, NJ 07928-2142.
- What is Amy Gruber's phone number?
- The practice phone number listed in the NPPES registry for Amy Gruber is (973) 635-2432.
- Does Amy Gruber accept Medicare?
- Amy Gruber is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Amy Gruber's NPI active?
- Yes — Amy Gruber's NPI (1578588851) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.