Penny Borenstein, MD
NPI 1588830863 · Public Health & General Preventive Medicine Physician · San Luis Obispo, CA
Enrolled with Medicare as Practitioner - Preventive Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Penny Borenstein, MD is a Public Health & General Preventive Medicine Physician provider in San Luis Obispo, CA (NPI 1588830863).
Provider details
- NPI number
- 1588830863
- Entity type
- Individual
- Primary specialty
- Public Health & General Preventive Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- G88337 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 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
57 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) |
|---|---|---|
| Admn Sarscov2 Vacc 1 Dose90480 | 32 | $38 |
| Administration of Influenza Virus VaccineG0008 | 25 | $30 |
Typical Medicare-allowed amounts for these services range $30–$38 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Typhoid Vi Polysacch Vaccinebrand: Typhim Vi | 90 | 90 |
| Diphth,pertuss(acell),tet Vacbrand: Boostrix Tdap | 56 | 56 |
| Rsv Vacc, Pref a and Pref B/Pfbrand: Abrysvo | 38 | 38 |
| Hepatitis a Virus Vaccine/Pfbrand: Havrix | 36 | 29 |
| Yellow Fever Vaccine Live/Pfbrand: Yf-Vax | 36 | 36 |
| Poliomyelitis Vaccine, Killedbrand: Ipol | 33 | 32 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$19 across 1 record (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
- 2008-05-06
- Last updated
- 2010-09-28
Frequently asked questions
- What is Penny Borenstein's NPI number?
- Penny Borenstein's National Provider Identifier (NPI) is 1588830863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Penny Borenstein's specialty?
- Penny Borenstein is listed in the NPPES registry with a primary specialty of Public Health & General Preventive Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Penny Borenstein located?
- Penny Borenstein's practice location on file with NPPES is 2191 Johnson Ave, San Luis Obispo, CA 93401-4534.
- What is Penny Borenstein's phone number?
- The practice phone number listed in the NPPES registry for Penny Borenstein is (805) 781-5519.
- Does Penny Borenstein accept Medicare?
- Penny Borenstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Penny Borenstein's NPI active?
- Yes — Penny Borenstein's NPI (1588830863) is active in the NPPES registry as of the last update on 2010-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.