Herbert Gregg, MD
NPI 1558525766 · Neurology Physician · Lenox, MA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Herbert Gregg, MD is a Neurology Physician provider in Lenox, MA (NPI 1558525766).
Provider details
- NPI number
- 1558525766
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 237083 (MA)
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
17 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
806 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 | 190 | $94 |
| Measurement of Brain Wave Activity (eeg), Awake and Drowsy95816 | 106 | $57 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 99 | $43 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 86 | $140 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 78 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 79 | 22 |
| Gabapentin | 67 | 21 |
| Levetiracetam | 51 | 16 |
| Memantine Hcl | 42 | — |
| Donepezil Hcl | 30 | — |
| Topiramate | 28 | — |
| Lamotrigine | 24 | — |
| Carbidopa/Levodopa |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-16
- Last updated
- 2018-12-20
Frequently asked questions
- What is Herbert Gregg's NPI number?
- Herbert Gregg's National Provider Identifier (NPI) is 1558525766, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Herbert Gregg's specialty?
- Herbert Gregg is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Herbert Gregg located?
- Herbert Gregg's practice location on file with NPPES is 91 West Street, Lenox, MA 01240.
- What is Herbert Gregg's phone number?
- The practice phone number listed in the NPPES registry for Herbert Gregg is (800) 348-4565.
- Does Herbert Gregg accept Medicare?
- Herbert Gregg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Herbert Gregg's NPI active?
- Yes — Herbert Gregg's NPI (1558525766) is active in the NPPES registry as of the last update on 2018-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.