Harold Rowson, MD
NPI 1164407698 · Anesthesiology Physician · Upper Marlboro, MD
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Harold Rowson, MD is a Anesthesiology Physician provider in Upper Marlboro, MD (NPI 1164407698).
Provider details
- NPI number
- 1164407698
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- D40908 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
337 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 96 | $159 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 95 | $137 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 75 | $107 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 71 | $128 |
Typical Medicare-allowed amounts for these services range $107–$159 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (2)
- 827 Linden AveBaltimore, MD 21201-4606Phone: (410) 225-8000
- 24035 Three Notch RdHollywood, MD 20636-4871Phone: (301) 373-7900Fax: (301) 373-6900
Registry dates
- Enumerated
- 2005-12-07
- Last updated
- 2021-12-14
- Certified
- 2021-12-14
Frequently asked questions
- What is Harold Rowson's NPI number?
- Harold Rowson's National Provider Identifier (NPI) is 1164407698, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harold Rowson's specialty?
- Harold Rowson is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Harold Rowson located?
- Harold Rowson's practice location on file with NPPES is 5714 Kenfield Ln, Upper Marlboro, MD 20772-3943.
- What is Harold Rowson's phone number?
- The practice phone number listed in the NPPES registry for Harold Rowson is (301) 325-3558.
- Does Harold Rowson accept Medicare?
- Harold Rowson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Harold Rowson's NPI active?
- Yes — Harold Rowson's NPI (1164407698) is active in the NPPES registry as of the last update on 2021-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.