DR. MICHAEL RAMSEY D.O.
NPI 1205052693
Psychiatry & Neurology - Child & Adolescent Psychiatry in Mill Valley, CA

NPI Status: Active since April 17, 2007

Contact Information

655 REDWOOD HWY FRONTAGE RD STE 261
MILL VALLEY, CA
ZIP 94941
Phone: (415) 704-7066
Fax: (415) 358-3225

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Child & Adolescent Psychiatry
  • Accepts Insurance
  • PECOS Enrolled

About MICHAEL RAMSEY

This page provides the complete NPI Profile along with additional information for Michael Ramsey, a provider established in Mill Valley, California with a medical specialization in Psychiatry & Neurology, focusing in child & adolescent psychiatry . The healthcare provider is registered in the NPI registry with number 1205052693 assigned on April 2007. The practitioner's primary taxonomy code is 2084P0804X with license number OP60196171 (WA). The provider is registered as an individual and his NPI record was last updated June 2026.

NPI
1205052693
Provider Name
DR. MICHAEL RAMSEY D.O.
Gender
Male
Entity Type
Individual
Location Address
655 REDWOOD HWY FRONTAGE RD STE 261 MILL VALLEY, CA 94941
Location Phone
(415) 704-7066
Location Fax
(415) 358-3225
Mailing Address
655 REDWOOD HWY FRONTAGE RD STE 261 MILL VALLEY, CA 94941
Mailing Phone
(415) 704-7066
Mailing Fax
(415) 358-3225
Is Sole Proprietor?
No
Enumeration Date
04-17-2007
Last Update Date
06-08-2026
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Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Psychiatry & Neurology Child & Adolescent Psychiatry

Taxonomy Code
2084P0804X
Type
Allopathic & Osteopathic Physicians
License No.
OP60196171
License State
WA
Taxonomy Description
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
12084P0804XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Child & Adolescent Psychiatry

20A23590 (CA)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Core Bronze HSA 10600 - EPO
  • Core Bronze HSA 7500 - EPO
  • Core Bronze HSA 8300 - EPO
  • Core Gold 1500 - EPO
  • Core Gold 3000 - EPO
  • Core Silver 3500 - EPO
  • Core Silver 4500 - EPO
  • Core Silver 5000 - EPO
  • Core Silver 7500 - EPO
  • Core Standard Expanded Bronze HSA - EPO
  • Core Standard Gold - EPO
  • Core Standard Silver - EPO
  • PacificSource Oregon Standard Bronze HSA Plan Core - EPO
  • PacificSource Oregon Standard Gold Plan Core - EPO
  • PacificSource Oregon Standard Silver Plan Core - EPO
  • Premera Blue Cross Alaska One Gold - PPO
  • Premera Blue Cross Preferred Bronze 5800 HSA - PPO
  • Premera Blue Cross Preferred Bronze 6350 - PPO
  • Premera Blue Cross Preferred Gold 1500 - PPO
  • Premera Blue Cross Preferred Silver 4500 - PPO
  • Premera Blue Cross Standard Bronze II - PPO
  • Premera Blue Cross Standard Gold - PPO
  • Premera Blue Cross Standard Silver - PPO
  • Premera Blue Cross Family Dental - PPO
  • Premera Blue Cross Pediatric Dental - PPO
  • Connect 1500 Gold - EPO
  • Connect 6000 Silver - EPO
  • Connect 9800 Bronze - EPO
  • HSA Qualified 7500 Bronze - Choice Network - EPO
  • HSA-E Qualified 7500 Bronze - Signature Network - EPO
  • Providence Oregon Standard Bronze Plan - Choice Network - EPO
  • Providence Oregon Standard Bronze Plan - Signature Network - EPO
  • Providence Oregon Standard Gold Plan - Choice Network - EPO
  • Providence Oregon Standard Gold Plan - Signature Network - EPO
  • Providence Oregon Standard Silver Plan - Choice Network - EPO
  • Providence Oregon Standard Silver Plan - Signature Network - EPO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Michael Ramsey is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Reviews for DR. MICHAEL RAMSEY D.O.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1205052693, we treat the final digit (3) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
2
Unchanged
Pos 3
0
Doubled → 0
Pos 4
5
Unchanged
Pos 5
0
Doubled → 0
Pos 6
5
Unchanged
Pos 7
2
Doubled → 4
Pos 8
6
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
3
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 0 → 0 0 → 0 2 → 4 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 2 + 0 + 5 + 0 + 5 + 4 + 6 + 1 + 8 + 24 = 57

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1205052693.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Psychiatry & Neurology (Child & Adolescent Psychiatry)
655 REDWOOD HWY FRONTAGE RD STE 261
MILL VALLEY, CA 94941
Psychiatry & Neurology (Psychiatry)
655 REDWOOD HWY FRONTAGE RD STE 261
MILL VALLEY, CA 94941

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1205052693, enumerated as an "individual" on April 17, 2007.

The provider is located at 655 REDWOOD HWY FRONTAGE RD STE 261 MILL VALLEY, CA 94941 and the phone number is (415) 704-7066.

Psychiatry & Neurology with taxonomy code 2084P0804X and a focus in Child & Adolescent Psychiatry.

The provider might be accepting Accepts: PacificSource Health Plans, Premera Blue Cross. Please consult your insurance carrier or call the provider to verify.