Ann Gryboski, MD
NPI 1053389924 · Internal Medicine Physician · South Yarmouth, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann Gryboski, MD is a Internal Medicine Physician provider in South Yarmouth, MA (NPI 1053389924).
Provider details
- NPI number
- 1053389924
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 58129 (MA)
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
20 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
7,088 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 | 828 | $130 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 694 | $7 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 554 | $92 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 499 | $8 |
| Liver Enzyme (sgot), Level84450 | 462 | $5 |
| Liver Enzyme (sgpt), Level84460 | 462 | $5 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 110 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 823 | 230 |
| Levothyroxine Sodium | 504 | 131 |
| Omeprazole | 446 | 126 |
| Lisinopril | 420 | 113 |
| Amlodipine Besylate | 372 | 104 |
| Metoprolol Succinate | 329 | 91 |
| Escitalopram Oxalate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$171 across 7 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
- 2006-03-08
- Last updated
- 2019-06-18
Frequently asked questions
- What is Ann Gryboski's NPI number?
- Ann Gryboski's National Provider Identifier (NPI) is 1053389924, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Gryboski's specialty?
- Ann Gryboski is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ann Gryboski located?
- Ann Gryboski's practice location on file with NPPES is 495 Station Ave, South Yarmouth, MA 02664-1218.
- What is Ann Gryboski's phone number?
- The practice phone number listed in the NPPES registry for Ann Gryboski is (508) 778-4777.
- Does Ann Gryboski accept Medicare?
- Ann Gryboski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann Gryboski's NPI active?
- Yes — Ann Gryboski's NPI (1053389924) is active in the NPPES registry as of the last update on 2019-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.