Benjamin Greer, M.D.
NPI 1871890525 · Pain Medicine Physician · Danville, CA
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Greer, M.D. is a Pain Medicine Physician provider in Danville, CA (NPI 1871890525).
Provider details
- NPI number
- 1871890525
- Entity type
- Individual
- Primary specialty
- Pain Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G45340 (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 tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
10,379 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 1,730 | $58 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,083 | $151 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 863 | $74 |
| Therapy Procedure Using Massage, Each 15 Minutes97124 | 850 | $33 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 573 | $109 |
| Application of Ultrasound, Each 15 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 182 | 58 |
| Buprenorphine Hcl | 51 | 23 |
| Gabapentin | 51 | 24 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 50 | 16 |
| Pregabalin | 30 | — |
| Trazodone Hcl | 28 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$142 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-02-15
- Last updated
- 2024-08-30
- Certified
- 2024-08-30
Frequently asked questions
- What is Benjamin Greer's NPI number?
- Benjamin Greer's National Provider Identifier (NPI) is 1871890525, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Greer's specialty?
- Benjamin Greer is listed in the NPPES registry with a primary specialty of Pain Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Benjamin Greer located?
- Benjamin Greer's practice location on file with NPPES is 197 Whispering Trees Ln, Danville, CA 94526-2427.
- What is Benjamin Greer's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Greer is (925) 915-9314.
- Does Benjamin Greer accept Medicare?
- Benjamin Greer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Greer's NPI active?
- Yes — Benjamin Greer's NPI (1871890525) is active in the NPPES registry as of the last update on 2024-08-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.