Kristin Karlyn, MD
NPI 1033182530 · Internal Medicine Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kristin Karlyn, MD is a Internal Medicine Physician provider in Pasadena, CA (NPI 1033182530).
Provider details
- NPI number
- 1033182530
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A063407 (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
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
572 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 160 | $99 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 153 | $138 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 107 | $140 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 61 | $16 |
| Drawing of Blood for a Medical Problem99195 | 22 | $111 |
| Telehealth Originating Site Facility FeeQ3014 | 22 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 90 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 196 | 35 |
| Atorvastatin Calcium | 165 | 32 |
| Rosuvastatin Calcium | 151 | 39 |
| Levothyroxine Sodium | 137 | 35 |
| Lisinopril | 121 | 16 |
| Gabapentin | 106 | 20 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$342 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
- 2006-02-07
- Last updated
- 2022-04-27
- Certified
- 2022-04-27
Frequently asked questions
- What is Kristin Karlyn's NPI number?
- Kristin Karlyn's National Provider Identifier (NPI) is 1033182530, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kristin Karlyn's specialty?
- Kristin Karlyn is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kristin Karlyn located?
- Kristin Karlyn's practice location on file with NPPES is 1044 S Fair Oaks Ave Ste 101, Pasadena, CA 91105-2622.
- What is Kristin Karlyn's phone number?
- The practice phone number listed in the NPPES registry for Kristin Karlyn is (626) 734-7870.
- Does Kristin Karlyn accept Medicare?
- Kristin Karlyn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kristin Karlyn's NPI active?
- Yes — Kristin Karlyn's NPI (1033182530) is active in the NPPES registry as of the last update on 2022-04-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.