Greti Petersen
NPI 1144252040 · Internal Medicine Physician · Bakersfield, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Greti Petersen is a Internal Medicine Physician provider in Bakersfield, CA (NPI 1144252040).
Provider details
- NPI number
- 1144252040
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A93553 (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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
25 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 25 | $131 |
Typical Medicare-allowed amounts for these services range $131–$131 (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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 61 | 32 |
| Amlodipine Besylate | 49 | 25 |
| Levothyroxine Sodium | 39 | 17 |
| Metformin Hcl | 36 | 18 |
| Pantoprazole Sodium | 33 | 12 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 32 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$147 across 4 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
Additional practice locations (1)
- 2201 Mt. Vernon AveSte 211Bakersfield, CA 93306Phone: (661) 872-7000Fax: (661) 872-0499
Registry dates
- Enumerated
- 2006-07-07
- Last updated
- 2024-03-06
- Certified
- 2024-03-06
Frequently asked questions
- What is Greti Petersen's NPI number?
- Greti Petersen's National Provider Identifier (NPI) is 1144252040, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Greti Petersen's specialty?
- Greti Petersen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Greti Petersen located?
- Greti Petersen's practice location on file with NPPES is 625 34th St Ste 100&200, Bakersfield, CA 93301-2305.
- What is Greti Petersen's phone number?
- The practice phone number listed in the NPPES registry for Greti Petersen is (183) 367-8278.
- Does Greti Petersen accept Medicare?
- Greti Petersen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Greti Petersen's NPI active?
- Yes — Greti Petersen's NPI (1144252040) is active in the NPPES registry as of the last update on 2024-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.