John Shum, MD
NPI 1861616047 · Obstetrics & Gynecology Physician · Longview, TX
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Shum, MD is a Obstetrics & Gynecology Physician provider in Longview, TX (NPI 1861616047).
Provider details
- NPI number
- 1861616047
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- L4123 (TX)
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 tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
6 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Norgestimate-Ethinyl Estradiolbrand: Sprintec | 23 |
| Promethazine Hcl | 13 |
| Norethindrone Acetate | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$258 across 8 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 (5)
- 700 E Marshall AveLongview, TX 75601-5580Phone: (903) 315-5733
- 705 E Marshall Ave Ste 3000Longview, TX 75601-5661Phone: (903) 758-2610Fax: (903) 758-7081
- 1761 W Loop 281Longview, TX 75604-2734Phone: (903) 758-2610Fax: (903) 758-7081
- 1107 E Marshall AveLongview, TX 75601-5602Phone: (903) 758-2610Fax: (903) 758-7081
- 825 Medical DrTyler, TX 75701-2143Phone: (903) 758-2610Fax: (903) 758-7081
Registry dates
- Enumerated
- 2007-04-12
- Last updated
- 2025-10-05
- Certified
- 2025-10-05
Frequently asked questions
- What is John Shum's NPI number?
- John Shum's National Provider Identifier (NPI) is 1861616047, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Shum's specialty?
- John Shum is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is John Shum located?
- John Shum's practice location on file with NPPES is 802 Medical Cir Ste 101, Longview, TX 75605-5169.
- What is John Shum's phone number?
- The practice phone number listed in the NPPES registry for John Shum is (903) 758-2610.
- Does John Shum accept Medicare?
- John Shum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Shum's NPI active?
- Yes — John Shum's NPI (1861616047) is active in the NPPES registry as of the last update on 2025-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.