Barbara Newlon, D.O.
NPI 1356564363 · Family Medicine Physician · Mill Valley, CA
Enrolled with Medicare as Practitioner - Osteopathic Manipulative Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Barbara Newlon, D.O. is a Family Medicine Physician provider in Mill Valley, CA (NPI 1356564363).
Provider details
- NPI number
- 1356564363
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A20-4798 (CA)
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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,945 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) |
|---|---|---|
| Osteopathic Manipulative Treatment, 7-8 Body Regions98928 | 973 | $80 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 929 | $146 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 43 | $246 |
Typical Medicare-allowed amounts for these services range $80–$246 (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
Registry dates
- Enumerated
- 2007-04-10
- Last updated
- 2024-05-24
Frequently asked questions
- What is Barbara Newlon's NPI number?
- Barbara Newlon's National Provider Identifier (NPI) is 1356564363, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Newlon's specialty?
- Barbara Newlon is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Barbara Newlon located?
- Barbara Newlon's practice location on file with NPPES is 655 Redwood Highway, Mill Valley, CA 94941-3011.
- What is Barbara Newlon's phone number?
- The practice phone number listed in the NPPES registry for Barbara Newlon is (415) 459-2522.
- Does Barbara Newlon accept Medicare?
- Barbara Newlon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Barbara Newlon's NPI active?
- Yes — Barbara Newlon's NPI (1356564363) is active in the NPPES registry as of the last update on 2024-05-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.