Annie Lin, MD
NPI 1699763987 · Internal Medicine Physician · Catonsville, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Annie Lin, MD is a Internal Medicine Physician provider in Catonsville, MD (NPI 1699763987).
Provider details
- NPI number
- 1699763987
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- D0061332 (MD)
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
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
583 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 | 186 | $96 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 93 | $8 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 83 | $116 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 72 | $133 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 32 | $75 |
| Administration of Influenza Virus VaccineG0008 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 149 | 47 |
| Amlodipine Besylate | 126 | 39 |
| Atorvastatin Calcium | 119 | 44 |
| Lisinopril | 100 | 30 |
| Hydrochlorothiazide | 88 | 23 |
| Metformin Hclbrand: Metformin Hcl Er | 80 | 22 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$229 across 10 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
- 2005-10-11
- Last updated
- 2010-02-24
Frequently asked questions
- What is Annie Lin's NPI number?
- Annie Lin's National Provider Identifier (NPI) is 1699763987, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Annie Lin's specialty?
- Annie Lin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Annie Lin located?
- Annie Lin's practice location on file with NPPES is 405 Frederick Rd, Catonsville, MD 21228-4645.
- What is Annie Lin's phone number?
- The practice phone number listed in the NPPES registry for Annie Lin is (410) 788-6565.
- Does Annie Lin accept Medicare?
- Annie Lin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Annie Lin's NPI active?
- Yes — Annie Lin's NPI (1699763987) is active in the NPPES registry as of the last update on 2010-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.