William Harlan, M.D.
NPI 1003806043 · Gastroenterology Physician · Asheville, NC
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Harlan, M.D. is a Gastroenterology Physician provider in Asheville, NC (NPI 1003806043).
Provider details
- NPI number
- 1003806043
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 9300487 (NC)
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,301 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) |
|---|---|---|
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 354 | $46 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 192 | $61 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 152 | $237 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 86 | $87 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 78 | $79 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 97 | 32 |
| Famotidine | 73 | 18 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 61 | 61 |
| Pantoprazole Sodium | 46 | 16 |
| 0.9 % Sodium Chloridebrand: Sodium Chloride | 44 | — |
| Adalimumabbrand: Humira(cf) Pen | 42 | — |
| Mesalamine | 37 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,093 across 37 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 (2)
- 188 Medical Park DriveSuite aBrevard, NC 28712-4188Phone: (828) 883-9600Fax: (828) 774-5469
- 1032 Fleming StreetHendersonville, NC 28791-3532Phone: (828) 696-3099Fax: (828) 258-1614
Registry dates
- Enumerated
- 2005-10-21
- Last updated
- 2025-10-23
- Certified
- 2025-10-23
Frequently asked questions
- What is William Harlan's NPI number?
- William Harlan's National Provider Identifier (NPI) is 1003806043, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Harlan's specialty?
- William Harlan is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is William Harlan located?
- William Harlan's practice location on file with NPPES is 291 Sweeten Creek Road, Asheville, NC 28803-1527.
- What is William Harlan's phone number?
- The practice phone number listed in the NPPES registry for William Harlan is (828) 254-0881.
- Does William Harlan accept Medicare?
- William Harlan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Harlan's NPI active?
- Yes — William Harlan's NPI (1003806043) is active in the NPPES registry as of the last update on 2025-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.