Karen Huang, D.O.
NPI 1952509911 · Gastroenterology Physician · Midland, MI
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Huang, D.O. is a Gastroenterology Physician provider in Midland, MI (NPI 1952509911).
Provider details
- NPI number
- 1952509911
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 5101015226 (MI)
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
18 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
483 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 | 76 | $75 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 62 | $93 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 52 | $76 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 51 | $126 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 50 | $100 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 317 | 102 |
| Omeprazole | 183 | 54 |
| Colestipol Hcl | 80 | 22 |
| Famotidine | 71 | 31 |
| Sucralfate | 70 | 27 |
| Azathioprine | 42 | — |
| Mesalamine | 33 | — |
| Linaclotidebrand: Linzess | 33 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$481 across 18 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
- 2007-07-10
- Last updated
- 2013-07-03
Frequently asked questions
- What is Karen Huang's NPI number?
- Karen Huang's National Provider Identifier (NPI) is 1952509911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Huang's specialty?
- Karen Huang is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Huang located?
- Karen Huang's practice location on file with NPPES is 4230 Bay City Rd, Midland, MI 48642-6014.
- What is Karen Huang's phone number?
- The practice phone number listed in the NPPES registry for Karen Huang is (989) 839-0750.
- Does Karen Huang accept Medicare?
- Karen Huang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Huang's NPI active?
- Yes — Karen Huang's NPI (1952509911) is active in the NPPES registry as of the last update on 2013-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.