Erin Sarzynski, MD
NPI 1669676680 · Internal Medicine Physician · Okemos, MI
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erin Sarzynski, MD is a Internal Medicine Physician provider in Okemos, MI (NPI 1669676680).
Provider details
- NPI number
- 1669676680
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301089745 (MI)
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
19 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
198 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 86 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 70 | $92 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 29 | $123 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 13 | $8 |
Typical Medicare-allowed amounts for these services range $8–$123 (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 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 45 | 19 |
| Levothyroxine Sodium | 36 | 16 |
| Lisinopril | 32 | 17 |
| Losartan Potassium | 31 | 16 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 23 | 12 |
| Rosuvastatin Calcium | 20 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$635 across 36 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
- 2007-06-13
- Last updated
- 2025-04-30
- Certified
- 2025-04-30
Frequently asked questions
- What is Erin Sarzynski's NPI number?
- Erin Sarzynski's National Provider Identifier (NPI) is 1669676680, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erin Sarzynski's specialty?
- Erin Sarzynski is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Erin Sarzynski located?
- Erin Sarzynski's practice location on file with NPPES is 2446 Jolly Rd Ste B, Okemos, MI 48864-3514.
- What is Erin Sarzynski's phone number?
- The practice phone number listed in the NPPES registry for Erin Sarzynski is (517) 253-5530.
- Does Erin Sarzynski accept Medicare?
- Erin Sarzynski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erin Sarzynski's NPI active?
- Yes — Erin Sarzynski's NPI (1669676680) is active in the NPPES registry as of the last update on 2025-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.