Christina Ling, M.D.
NPI 1093133183 · Gastroenterology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christina Ling, M.D. is a Gastroenterology Physician provider in Orange, CA (NPI 1093133183).
Provider details
- NPI number
- 1093133183
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A140400 (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
12 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
574 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) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 67 | $99 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 62 | $170 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 58 | $157 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 51 | $248 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 47 | $96 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 81 | 40 |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 77 | 57 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 52 | 48 |
| Lipase/Protease/Amylasebrand: Zenpep | 47 | 25 |
| Lipase/Protease/Amylasebrand: Creon | 36 | 15 |
| Colesevelam Hcl | 21 | 14 |
| Linaclotidebrand: Linzess |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$71 across 2 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)
- 333 City Blvd W Ste 400Orange, CA 92868-2994Phone: (714) 456-6745Fax: (714) 456-7753
Registry dates
- Enumerated
- 2014-04-04
- Last updated
- 2023-03-07
- Certified
- 2023-03-07
Frequently asked questions
- What is Christina Ling's NPI number?
- Christina Ling's National Provider Identifier (NPI) is 1093133183, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christina Ling's specialty?
- Christina Ling is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Christina Ling located?
- Christina Ling's practice location on file with NPPES is 101 the City Dr S Bldg 22c, Orange, CA 92868-3201.
- What is Christina Ling's phone number?
- The practice phone number listed in the NPPES registry for Christina Ling is (888) 717-4463.
- Does Christina Ling accept Medicare?
- Christina Ling is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christina Ling's NPI active?
- Yes — Christina Ling's NPI (1093133183) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.